According to director Penelope Spheeris, Mike Myers almost quit Wayne's World (1992) over Bohemian Rhapsody because he thought his wig wouldn't hold.
Spheeris described Myers as emotionally needy, and very difficult to work with. So much that she begged her daughter to "babysit" Myers on the set of Wayne's World. Apparently the daughter had a "calming effect" on Myers, and made the shoot somewhat more bearable.