Megan Fox: 'Transformers' – Director Michael Bay did not take it kindly when star Megan Fox dissed "Transformers: Revenge of the Fallen." After she said "people are well aware that this is not a movie about acting," Bay countered that "nobody in the world knew about Megan Fox until I found her and put her in 'Transformers.' " Fox did not return for the third installment.
Katherine Heigl: 'Grey's Anatomy' – In 2008, Katherine Heigl declined to put her name forward for Emmy consideration, complaining that "Grey's Anatomy" had not given her award worthy material. The year before, she complained that her film "Knocked Up" was "a little sexist. It paints the women as shrews, as humorless and uptight, and it paints the men as lovable, goofy, fun-loving guys."