1. When Julia Stiles read the poem in 10 Things I Hate About You, the tears were completely unplanned.
2. The scene where Heath Ledger plays with fire? Totally improvised.
3. When submitting the script for American Pie to studios, screenwriter Adam Herz titled it, 'Untitled Teenage Sex Comedy That Can Be Made For Under $10 Million That Most Readers Will Probably Hate But I Think You Will Love'.
4. The Jason Biggs erection scene was replicated by a sausage.
5. And that pie was from Costco.
6. While filming Clueless, Alicia Silverstone didn't know how to correctly pronounce "Haitians" in the debate scene.
7. There were 53 different kinds of tartan/plaid used in the film.
8. In Patrick Swayze's Ghost, the horrific sounds made by the "dark shadows" are really the sounds of babies, played at an extremely slow speed.
9. Sarah Jessica Parker was reportedly offered the role of Julianne Potter in My Best Friend's Wedding.
10. In Never Been Kissed, David Arquette plays Rob Geller. His then wife, Courteney Cox, played Monica Geller on Friends.
11. Never Been Kissed was also James Franco's feature debut.
12. Before starring together in One Fine Day, George Clooney had met Michelle Pfeiffer years before, because he dated her sister Dedee in the early '80s.
13. The necklace that Vivian wears to the opera in Pretty Woman really cost $250,000.
14. During the sex scene, Julia Roberts got so nervous a visible vein popped out of her forehead.
15. M. Night Shyamalan claims to have ghostwritten the script for She's All That.
16. Cameron Diaz told Jay Leno she was the body inside the bag carried by the hitchhiker in There's Something About Mary.
17. In the original screenplay for While You Were Sleeping, the story was about a woman in a coma and a man pretending to be her fiancé.
18. Madonna and Marisa Tomei reportedly turned down the role of Yvonne Biasi in It Could Happen To You.
19. Elijah Wood was supposedly considered to star opposite Melissa Joan Hart in Drive Me Crazy, but he looked too young.
20. Tom Hanks and Meg Ryan starred in three '90s rom-coms together.
All facts come from IMDB.