Writer Helene E. Fraenkel, who was working on her first film, observed Jack Oakie answering dialogue cues in his own words and generally rewriting his part. Clair observed that the actor always conveyed the information that was necessary, albeit in his own words. Fraenkel was surprised that Clair didn't seem threatened by these changes and, in fact, seemed to welcome them.
About 15 minutes into the film, Powell quips to his housekeeper when she asks him if he needs his coat "Don't you think love might keep me warm?" and winks. This is a nod to Powell's song in the 1937 film "On the Avenue"