10 Sorely Missed Dynamic Duos

On the way to the top, something's bound to fall out. We only wish business and pleasure weren't so potent for these pairs. Find out what went down along the same lines between WikiLeaks' Julian Assange and Daniel Domscheit-Berg in The Fifth Estate – in theaters October 18.

1. John Lennon & Paul McCartney

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The duo's friendship crumbled beginning in 1968 due to a combination of artistic tension and legal disputes with their recording company, Apple, at the hands of their new management. Despite the outside factors, they continued to blame one another for the dissolution of The Beatles through pointed lyrics written in their solo material. Imagine... if we could have heard them make music together just one more time.

2. Coco Chanel & Pierre Wertheimer

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In 1924, Chanel deferred 70% of her company and its licenses to Wertheimer, a French businessman with a functioning retail empire and distribution platform. When she wanted control of the company back, she attempted to manipulate the laws around World War II to get it back even though she was made a rich woman from the deal. The Wertheimers now control 100% of the Chanel empire.

3. John D. Rockefeller & Maurice Clark

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One of Rockefeller's (pictured above) earliest development partnerships was with his neighbor, Maurice Clark. They agreed to form an oiling company in 1859 following the Civil War. As more partners and land came into the deal, disagreements mounted; so Rockefeller bought out Clark's shares, kicked him aside, and went on to become the wealthiest man of his era.

4. Sigmund Freud & Carl Jung

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These friends ended up severing ties over the eventual disagreement between their philosophical fundamentals. Freud was an atheist, whereas Jung was mythical and spiritual. That, mixed with a series of deceptive entanglements and affairs, caused Freud to write Jung in 1913 proposing that they "abandon their personal relations entirely." If only making up was as simple as a solid handshake to these two brilliant men!

5. Jay-Z & Damon Dash

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The two were one-time co-chiefs of Roc-A-Fella Records, but their partnership and friendship dissolved after Dash became overly cavalier with business decisions, firing much of Jay's hand-picked assistants and advisors. We wish these two titans could have ruled the world together considering HOV has already moved onto sports and business on top of making music.

6. Simon & Garfunkel

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At a documentary screening in early 2013, Art Garfunkel explained that the singer-songwriter's breakup stemmed from when they were both cast in a 1970 film adaptation of Catch 22, but then Simon's role was dropped from production, leaving him alone to write songs for months. Nothing's been the same since we haven't heard the power of those harmonies in person!

7. Jerry Lewis & Dean Martin

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There are many myths as to how this comedic powerhouse fell apart. Most historians boil it down to the fact that their work ethic was incompatible. Lewis was a workaholic and Martin liked some balance. Tensions famously boiled over on the set of "The Delicate Delinquent" in 1956, when Martin didn't want to play a cop, and Lewis simply suggested they find someone else instead of sticking up to find him a better fit. We only wish we could have seen these two making gags together with the grayest of hair.

8. Bill Belichik & Eric Mangini

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Mangini was educated by Belichik as he went through the ranks of coaching professional football, only to sell out the man who molded him. Mangini informed the league that Belichik's team was secretly taping and viewing practice footage of their championship competitors. Mangini has apologized publicly for hurting his mentor. There's no I in TEAM, after all, ever!

9. Noel & Liam Gallagher

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Oasis arguably ruled alternative rock for a time, only to officially call it quits in 2009, in no small part to the infighting antics of the Gallagher brothers. There was one memorable gig where the band was billed, but only Noel played while Liam sat on the balcony berating him the entire time. Their partnership totally dissolved following a violent argument backstage at a festival in Paris. After 18 years, they've moved onto their own projects. In this era of reunion tours though, we hope it won't be too late before we get another taste of Oasis.

10. Winona Ryder & Gwyneth Paltrow

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Legend has it that these former best friends, who even dated best friends Matt Damon and Ben Affleck around the same time, fell apart after Gwyneth apparently stole the script for Shakespeare in Love right off of Winona's coffee table. She went on to win an Oscar for her portrayal of Viola. Now that these one-time shooting starlets are all grown up, it'd be so amazing to see them taking over Hollywood together in a new era with their increased wisdom.