Katherine Heigl
Heigl is apparently one of the more difficult actresses to work with in Hollywood, and there are plenty of accounts to back that up. While the film’s director and executive producer praised Heigl’s work on the movie Life as We Know It to The Hollywood Reporter, some insiders claimed they witnessed her being in “desperately difficult situations”. “She can cost you time every single day of shooting. Wardrobe issues, not getting out of the trailer, questioning the script every single day. Even getting her deal closed at Warners was hard. She hit that point of ‘no.'”