5. Laurence Olivier as Othello in Othello (1965)
Olivier is one of the best Shakespearean performers, and one of the greatest actors, period, to ever do it. With that said, we completely understand why the major movie studios largely backed away from this project, because he lost his mind on this one.
To portray Othello, Olivier completely covered himself in blackface makeup, and if the fact that he doesn't remotely resemble any actual dark-skinned person we know isn't enough, he also created his own special accent that catapulted the performance into comical waters. Should've settled for Iago, bro.