The filming [of “The Prince and the Showgirl,” starring Laurence Olivier and Marilyn Monroe] was a disaster almost from the beginning. Olivier should have expected trouble. He had asked William Wyler what she was like to work with, and he had replied, “Hitler.”
— From page 268 of Terry Coleman’s “Olivier,” a new biography based almost exclusively on primary sources. In fact, Wyler never worked with Monroe. Didn’t matter. He knew.