Randall had appeared in the cast of the Broadway play, but in Dailey's role, not the one he plays in the film. He replaced Gig Young during the show's run.
David Niven replaced German actor OW Fischer.
This was based on a popular Broadway comedy by the well-known Edward Chodorov. Shockingly, this film makes no mention of him - he had been blacklisted.
Because the author of the play, Jerome Chodorov, had been blacklisted, the only reference to the play in the film's credits was that it was "Based on a Play Produced by Cheryl Crawford."