Dakota Johnson and Jamie Dornan
Funny enough, the entire 50 Shades of Gray franchise is riddled with feuds. For starters, there was apparently no in-person chemistry between Dakota Johnson and Jamie Dornan. This ended up making things difficult between the two, but they are friendly regardless.
In terms of these two verses the director Sam Taylor-Johnson and author E.L. James, things got way more heated. The two got into screaming matches which lead to near-brawls. With all of this bad energy rolling around, Johnson ended up leaving the film franchise. She was once asked if she would co-direct the movie all over again, and she said, "Of course I wouldn't. I was so confused by E.L. James. I don't understand when I can't navigate a person when there's no synergy.