You don’t have to love every cast mate you’re filming a movie with. Since the dawn of film history, actors have had to work with someone they didn’t like. But for these celebs, things got even more awkward on set, thanks to having to film an adult scene with their hated costar. Check out these 10 costars who filmed adult scenes and hated each other:

Fight Club: Helena Boham Carter and Brad Pitt

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Here’s a fun fact. That bedroom scene between Brad Pitt and Helena Boham Carter was done almost entirely in CGI. Why didn’t the two actors just hop into bed and grind against each other? They weren’t that fond of each other, apparently, at least not enough to pretend they were screwing.