1. Reefer Madness (1936) Motion Picture Ventures Written by: Arthur HoerlDirected by: Louis J. GasnierWhat it's about: Reefer Madness is a cautionary tale about the dangers of marijuana. The plot, insofar as there is a plot, revolves around high school students who experiment with "reefer" and are transformed into maniacs who kill and rape under the drug's persistent sway. It is very much not a documentary. 2. Beyond the Valley of the Dolls (1970) 20th Century Fox Written by: Roger EbertDirected by: Russ MeyerWhat it's about: In this thematic sequel to Valley of the Dolls, "dolls" — aka pills — still exist, but marijuana is much more prevalent. Kelly MacNamara (Dolly Read), Casey Anderson (Cynthia Myers), and Pet Danforth (Marcia McBroom) bring their band to L.A., where they're quickly seduced by the party lifestyle. 3. Fritz the Cat (1972) MGM Written by: Ralph BakshiDirected by: Ralph BakshiWhat it's about: Based on the R. Crumb comic strip of the same name, Fritz the Cat is an X-rated cartoon — literally, it's rated "X" — about a hedonistic cat who goes on very adult adventures. When he's not engaging in group sex, Fritz smokes a lot of weed, which takes the edge off as things take a turn for the heavy. 4. Up in Smoke (1978) Paramount Pictures Written by: Tommy Chong and Cheech MarinDirected by: Lou AdlerWhat it's about: In their first feature-length film, comedy duo Cheech and Chong play Pedro de Pacas and Anthony "Man" Stoner (seriously), who go on a road trip to secure more weed and end up in trouble with the law due to some epic misunderstandings, and the fact that they're really, really high. 5. Cheech & Chong's Next Movie (1980) Universal Studios Written by: Tommy Chong and Cheech MarinDirected by: Tommy ChongWhat it's about: In Cheech and Chong's next movie, cleverly titled Cheech & Chong's Next Movie, they once again find themselves engaged in a series of misadventures and mix-ups, largely influenced by being stoned or looking to get stoned. This time around, however, they make time for a little romance. 6. Nice Dreams (1981) Columbia Pictures Written by: Tommy Chong and Cheech MarinDirected by: Tommy ChongWhat it's about: In the third Cheech and Chong movie, the pair makes a living selling weed out of an ice cream truck, Happy Herb's Nice Dreams. Characters from the previous two movies reprise their roles — and Timothy Leary appears as himself, giving Cheech and Chong LSD. Did I mention they end the film as strippers? 7. Fast Times at Ridgemont High (1982) Universal Studios Written by: Cameron CroweDirected by: Amy HeckerlingWhat it's about: There are few burnout heroes as iconic as Jeff Spicoli (Sean Penn), but there's more to Fast Times than Spicoli, who is really a side character. Still, he's the obvious standout (alongside Phoebe Cates' famous nude scene) in this film about high schoolers who value sex and drugs above just about everything else. 8. Bill and Ted's Excellent Adventure (1989) Fox Searchlight Written by: Chris Matheson and Ed SolomonDirected by: Stephen HerekWhat it's about: The funny thing about stoner time travelers Bill and Ted is that they're not actually stoners — they're just so spacey, they might as well be. In the first installment of the Bill and Ted franchise, the titular idiots accidentally learn about history by going back in time and befriending a bunch of historical figures. 9. Dazed and Confused (1993) Criterion Written by: Richard LinklaterDirected by: Richard LinklaterWhat it's about: On the last day of high school in 1976, students celebrate the end of the school year by partying hard and hazing incoming freshman. Most people remember Dazed and Confused for Matthew McConaughey's breakthrough role as David Wooderson, a pothead creep who's somehow still charming. 10. Clerks (1994) Buena Vista Pictures Written by: Kevin SmithDirected by: Kevin SmithWhat it's about: Dante Hicks (Brian O'Halloran) and Randal Graves (Jeff Anderson) are clerks at the Quick Stop convenience store. That's basically it. More importantly, Clerks introduced us to Jay (Jason Mewes) and Silent Bob (Smith), two weed dealers and general annoyances who link Smith's film series together. 11. PCU (1994) 20th Century Fox Written by: Adam Leff and Zak PennDirected by: Hart BochnerWhat it's about: At Port Chester University, political correctness is in and fraternities are out. Naturally, there's an open rebellion that visiting pre-freshman Tom Lawrence (Chris Young) gets caught in the middle of. Substance abuse runs rampant, because of course it does, and Jon Favreau plays a pothead named Gutter. 12. Friday (1995) New Line Cinema Written by: Ice Cube and DJ PoohDirected by: F. Gary GrayWhat it's about: Friday takes place over the course of 16 hours, during which Craig Jones (Ice Cube) and Smokey (Chris Tucker) must come up with the $200 Smokey owes drug dealer Big Worm (Faizon Love). Smokey was supposed to just be selling, but he makes the classic mistake of getting high on his own supply. 13. Mallrats (1995) Universal Pictures Written by: Kevin SmithDirected by: Kevin SmithWhat it's about: More aimless twentysomethings trying to make something of themselves, more Jay and Silent Bob smoking weed and sharing their unique brand of wisdom. It all goes down at the local mall, where T.S. Quint (Jason Lee) and Brodie Bruce (Jason Lee) have commissioned Jay and Silent Bob to do some damage. 14. Half Baked (1998) Universal Pictures Written by: Dave Chappelle and Neal BrennanDirected by: Tamra DavisWhat it's about: Written by the co-creators of Chappelle's Show — but before that series began — Half Baked is your typical stoner farce, complete with modern-day pothead icons (Jim Breuer and his permanently half-lidded eyes) and stoner comedy standbys (Tommy Chong and Willie Nelson, among others). 15. Fear and Loathing in Las Vegas (1998) Universal Pictures Written by: Terry Gilliam, Tony Grisoni, Alex Cox, and Tod DaviesDirected by: Terry GilliamWhat it's about: Calling Fear and Loathing in Las Vegas a "stoner movie" is something of an understatement. The film, based on the semi-autobiographical novel by Hunter S. Thompson, is really about ALL OF THE DRUGS. As in, Raoul Duke (Johnny Depp) and Dr. Gonzo (Benicio del Toro) take them and trip out. 16. The Big Lebowski (1998) Gramercy Pictures Written by: Ethan Coen and Joel CoenDirected by: Joel CoenWhat it's about: Jeff Bridges plays Jeff Lebowski aka "The Dude," a man without many passions in life aside from bowling and marijuana. The Dude meets millionaire Jeffrey Lebowski (David Huddleston), who enlists his help in delivering the ransom when the "big" Lebowski's wife Bunny (Tara Reid) is kidnapped. 17. Dude, Where's My Car? (2000) 20th Century Fox Written by: Philip StarkDirected by: Danny LeinerWhat it's about: I mean, the title kind of says it all. Jesse Montgomery III (Ashton Kutcher) and Chester Greenburg (Seann William Scott) wake up with no memory of what happened the day before. More importantly, Jesse's car is missing. (Dude!) You might think the mystery comes down to weed — and it does. But also, aliens. 18. Saving Grace (2000) Fine Line Features Written by: Mark Crowdy and Craig FergusonDirected by: Nigel ColeWhat it's about: See, not all stoner movies are silly. After her husband dies, Grace Trevethyn (Brenda Blethyn) is left with staggering debts that she can't afford to pay. Along with the help of her loyal pothead gardener Matthew Stewart (Ferguson), Brenda cultivates a small marijuana plant into a lucrative grow operation. 19. How High (2001) Paramount Pictures Written by: Dustin AbrahamDirected by: Jesse DylanWhat it's about: Underachieving stoners Silas (Method Man) and Jamal (Redman) use the ashes of Silas' dead friend Ivory (Chuck Davis) as fertilizer for weed. When the two smoke the resulting product, they conjure up Ivory's ghost, who helps them cheat on their college entrance exams and get accepted to Harvard. 20. Jay and Silent Bob Strike Back (2001) Dimension Films Written by: Kevin SmithDirected by: Kevin SmithWhat it's about: Jay (Jason Mewes) and Silent Bob (Smith) return in their own adventure, which includes characters from earlier films in the series. The stoner duo seeks retribution after they find out that comic book characters inspired by them, Bluntman and Chronic, are getting the big-screen treatment. 21. Harold and Kumar Go to White Castle (2004) New Line Cinema Written by: Jon Hurwitz and Hayden SchlossbergDirected by: Danny LeinerWhat it's about: First, there was Cheech and Chong; then, there was Jay and Silent Bob; and finally, Harold (John Cho) and Kumar (Kal Penn), the modern-day stoner duo who emerged with Harold and Kumar Go to White Castle, in which the titular friends get stoned and embark on a disastrous trip to get hamburgers (with Neil Patrick Harris). 22. Smiley Face (2007) First Look International Written by: Dylan HaggertyDirected by: Gregg ArakiWhat it's about: Perpetual fuck-up Jane F (Anna Faris) accidentally consumes an entire plate of weed cupcakes baked by her creepy roommate Steve (Danny Masterson). Despite her severe intoxication, Jane tries to go about her day normally, making a list of tasks she has to complete. Things do not go as planned. 23. Knocked Up (2007) Universal Pictures Written by: Judd ApatowDirected by: Judd ApatowWhat it's about: Slacker Ben Stone (Seth Rogen) has a one-night stand with the highly ambitious Alison Scott (Katherine Heigl). When Alison gets pregnant, the two decide to make it work, which means Ben has to pull himself together and become an adult. And maybe cut down on the preposterous amount of weed he smokes. 24. Super High Me (2007) Red Envelope Entertainment Directed by: Michael BliedenWhat it's about: Doug Benson was inspired by Morgan Spurlock's Super-Size Me to make Super High Me, a documentary for which Benson smoked weed for 30 days straight to measure its effects on his body. As he discovered, consistent marijuana use didn't do any real damage — and certainly less than eating fast food for a month. 25. Pineapple Express (2008) Columbia Pictures Written by: Seth Rogen and Evan GoldbergDirected by: David Gordon GreenWhat it's about: Dale Denton (Seth Rogen) and his weed dealer Saul Silver (James Franco) become accidental witnesses to a crime at the home of drug lord Ted Jones (Gary Cole). Before they flee, Dale drops his joint at the scene, and the rare strain of weed it contains, Pineapple Express, helps lead the bad guys back to Saul. 26. Harold and Kumar Escape From Guantanamo Bay (2008) New Line Cinema Written by: Jon Hurwitz and Hayden SchlossbergDirected by: Jon Hurwitz and Hayden SchlossbergWhat it's about: In the second installment of the Harold and Kumar series, the buddies — you guessed it — find themselves detained as terrorists and sent to Guantanamo Bay. There are more misadventures, more hilariously out-of-character Neil Patrick Harris, and more weed. So much more weed. 27. The Wackness (2008) Sony Pictures Classics Written by: Jonathan LevineDirected by: Jonathan LevineWhat it's about: This coming-of-age drama stands out from most of the comedies on the list, but it certainly qualifies. Luke Shapiro (Josh Peck) is desperately trying to figure things out, so he makes a deal with psychiatrist Dr. Jeffrey Squires (Ben Kingsley) to trade marijuana for therapy. 28. Humboldt County (2008) Magnolia Home Entertainment Written by: Darren Grodsky and Danny JacobsDirected by: Darren Grodsky and Danny JacobsWhat it's about: Medical student Peter Hadley (Jeremy Strong) has a one-night stand with Bogart (Fairuza Balk), after which he falls asleep and wakes up to find she has driven him to Humboldt County, where she introduces him to her odd family, including Jack (Brad Dourif), Rosie (Frances Conroy), and Max (Chris Messina), who are pot farmers. 29. Your Highness (2011) Universal Pictures Written by: Danny McBride and Ben BestDirected by: David Gordon GreenWhat it's about: A lot of people didn't get Your Highness — which is fine. It's an odd film, but it's also the only fantasy stoner sex comedy, so at least it's unique. Danny McBride plays Prince Thadeous, James Franco plays Prince Fabious, and if you're not too high, you might be able to follow the absurd parody. 30. A Very Harold and Kumar 3D Christmas (2011) Warner Bros. Pictures Written by: Jon Hurwitz and Hayden SchlossbergDirected by: Todd Strauss-SchulsonWhat it's about: On one hand, the third Harold and Kumar movie is more of the same. On the other hand, this is a more mature Harold and Kumar. Also, they're in 3D and it's Christmas. The story is largely about their friendship, which is strained now that Harold is married and sober. But rest assured there are plenty of gags, including a stoned baby. 31. Ted (2012) Universal Pictures Written by: Seth MacFarlane, Alec Sulkin, and Wellesley WildDirected by: Seth MacFarlaneWhat it's about: John Bennett (Mark Wahlberg) lives with his best friend and lifelong companion, a talking teddy bear named Ted (Seth MacFarlane). As John tries to get serious with Lori Collins (Mila Kunis), he has to pull away from the hard-drinking, pot-smoking lifestyle to which he and Ted have grown accustomed. 32. This Is the End (2013) Columbia Pictures Written by: Seth Rogen and Evan GoldbergDirected by: Seth Rogen and Evan GoldbergWhat it's about: This Is the End is a stoner movie, sure, but it's also a post-apocalyptic disaster flick and a buddy comedy. Either way, it has a bunch of notable actors (who pop up in other films on this list) doing parodies of themselves at their worst when they're forced to deal with the world literally coming to an end.