Continuity mistake: After their first number, Ted and Jim are in their dressing room, Jim is buttoning his left cuff and then pulls down his right sleeve. In the next shot, he does this again.
Continuity mistake: Fred Astaire throws a box of candy over the back of a park bench. It lands on the ground, and the next shots show the candy appearing and disappearing.
Continuity mistake: When Bing Crosby sends a telegram to Fred Astaire it is dated Dec 25, even though it is revealed a few moment later in the flower shop scene that it is Christmas Eve.
Continuity mistake: Both times the song White Christmas is sung, first by Jim, then at the end of the movie by Linda, the singer uses a smoker's pipe to sound notes on the bells hanging on the Christmas tree by the piano. However, certain bells are struck twice and produce different notes from the first time they were struck.
