Star-Making Role: Greer Garson was unknown in Hollywood at the time, and was propelled to stardom.
Underage Casting: Although Mr. Chips is approximately 25 years older than his wife Katherine, Robert Donat was almost five months younger than Greer Garson. This is because Donat had to look convincingly young in the film's earliest scenes, which are set when he was Katherine's age.
Cut Song: Leslie Bricusse composed several songs for the film which were unused, including one titled "The Perfect Man", which only appears briefly and barely audible during Katherine's Party. Some of these unused songs were later reinstated in the 1982 stage musical version.