Goofs

When Pierre and Nina are about to do the death-defying last stunt for the investors with Pierre saying, "I won't do it", he is shown swinging gently on the trapeze in the closeups, to being virtually still on the trapeze in the long shots.

Mademoiselle helps Tommy back onto the train as it is pulling out of the station. As the scene cuts back to her, there is a stationary train on the same track that Tommy left on. She either stood there stunned for a long time, or the scene was filmed with the train still at the station.

When Tommy transforms to an adult in his bedroom, he is still wearing pajamas and changes into formal attire. However, when Thomas is running away from Mademoiselle as the clock is striking, his tuxedo turns into pajamas when he changes back into Tommy.

When Pierre Narval tries to talk Nina Burkhardt through her first falls from the trapeze to alleviate fear of the net, she switches platform positions from side to side, at least twice, in different shot angles just before she takes the swing for the first time.

The door between the theatre foyer and the backstage areas has "Stage: No Admittance" on a brightly lit electric sign above it. To discourage the public from opening them, such doors have no identification on them.