The Dark Tower (1943)
Stephen Torg (Lom) seeks work at a struggling traveling circus. While there, a lion escapes; Torg is able to control it with his skill at hypnotism. Phil Danton (Lyon), the head of the circus, is so impressed, he hires the newcomer. Then someone comes up with an idea. Torg hypnotizes Mary (Crawford) so that she can perform a dangerous aerial stunt without props. Her partner and boyfriend, Tom Danton (Farrar) is suspicious, but is overruled by the others.