We all know that Bryan Singer caused total chaos during production of “Bohemian Rhapsody,’” to the point where, on some days, he would just not show up on-set at all. At some point, Fox higher-ups had enough of his erratic behavior and demanded that Singer be fired from ‘Bohemian’. Replacing him was Dexter Fletcher, who is the director of the upcoming Elton John biopic “Rocket Man.” Supposedly there wasn’t much left to shoot (around weeks), but Fletcher came in to complete the film at the behest of old pal Rami Malek would seems to have pleaded to Fletcher to come and save the movie.