It's the best joke from a film almost springloaded with them, but what is the origin of Airplane!'s famous "Don't call me Shirley" gag? Airplane! was written and directed by Jerry Zucker, Jim Abrahams, and David Zucker, with the comedy being heavily inspired by the 1957 b-movie Zero Hour!, which featured Sterling Hayden (The Godfather). The plot of Zero Hour! featured a World War 2 pilot forced to land an airplane after the pilots become ill with food poisoning.Zero Hour!'s combination of unintentionally hilarious dialogue and taking the silly events of the plot deathly serious made an impression on Zucker,...