Stock footage was temporarily removed from this one to be used in the remake, Indianapolis Speedway (1939); when it was replaced back into this film's negative, some of the "Indianapolis Speedway" footage got mixed in with it, so that you now see 1939 footage in a 1932 film, including shots of a late 1930s ambulance and automobiles as well as racing announcers Wendell Niles, John Conte and Reid Kilpatrick, who did not appear in the film as it was originally released.
The principal driver for the racing scenes was Indianapolis 500 veteran Harry Hartz. He entered the race each year from 1922-27, finishing second three times and fourth twice during that six-year span. He appears as himself in the film as well.
The posters and DVD covers showing (artwork of) James Cagney and Joan Blondell's faces literally cheek-to-cheek can be misleading since Blondell plays the girlfriend of Cagney's little brother, Eddie. Ann Dvorak plays Cagney's girlfriend, and has a much bigger, more important role.
If The Little Rascals' George 'Spanky' McFarland isn't the child actor playing the son of Frank McHugh's character, Spud Connors... whose son is named Michael Connors, seen in the railway station with the line, "Hello, Joe" to Cagney... he's a dead ringer.