Goofs

When they're 'jogging' around the dance floor, Gloria's shirt is soaked with sweat. In the next shot it has only one sweat spot, and in the next it's all drenched again.

Robert tells Gloria about a film he saw starring Anita Louise and Richard Cromwell in which Anita Louise's character has a brain tumor. However, Louise and Cromwell made only two films together, Most Precious Thing in Life (1934) and The Villain Still Pursued Her (1940), both of which were made after 1932. The plot described does not resemble either of these movies but is very similar to that of Dark Victory (1939), which also was made after 1932.

However, as the film is a fictional story, a made-up movie (i.e., one that doesn't exist) is not a Goof but is simply a part of the story.

When Sailor (Red Buttons) is passed out, two referees take his pants off to dunk him into a tub of ice water. Buttons lifts up his hips so they can easily remove his pants.

The film takes place in 1932. However, during the opening sequence, posters for Varsity Show (1937) and Off the Record (1939) can be seen outside the ballroom on the pier.

At one point when Joel and Alice are in the spotlight, the band plays the song "You Oughta Be In Pictures," which wasn't composed until 1934.

An advertisement for RCA Victor "Magic Eye" radios is visible. These were not put on the market until 1935 at the earliest.

When Gloria's partner is rejected from participating in the marathon for being sick, she points to Ruby and snaps, "If she ain't pregnant, I'm Nelson Eddy." In 1932 Eddy was not yet a well-known figure in show business.

The Edward Heyman/Johnny Green (as John Green) song "Easy Come, Easy Go," which is used as the film's title theme and is performed by a singer at the fictional dance marathon, was not published until 1934 (two years after the film's 1932 setting).

The shadow of a camera and operator appears on Derby contestants.