9. Claire Danes & Leonardo DiCaprio in Romeo + Juliet
How could someone not get along with someone as good looking as Leonardo DiCaprio?! Claire Danes—that’s who. The couple played the classic lovers in the modern adaptation of Romeo + Juliet, but apparently, their off-screen chemistry wasn’t as successful. Rumor has it that Danes didn’t like DiCaprio because according to her, he was always goofing off at work and causing scenes to take longer than necessary. As a result, she would avoid him whenever they weren’t sharing a scene together.