Osgood: You know, I've always been fascinated by show business.
Daphne: Is that so?
Osgood: Yes. As a matter of fact it's cost my family quite a bit of money.
Daphne: Oh, you invest in shows?
Osgood: Showgirls. I've been married seven or eight times.
Daphne: You're not sure?
Osgood: Mama is keeping score.
It is supposed to be night when Joe slips out of the hotel, but a daytime sky is visible.
Not a mistake, just a fact. According to I.A.L. Diamond,Tony Curtis' "Josephine" voice was dubbed by another actor, as Curtis couldn't speak high enough.