This film integrates two popular "conspiracy theories" of gangster folklore: that John Dillinger didn't really die at the Biograph (for years, no one bought the idea that the FBI had killed him because the face was different and the man weighed more but this was easily explained by Dillinger having plastic surgery and just natural weight gain) and that Al Capone had hidden away a fortune somewhere in Chicago. (Geraldo Rivera did an expose in which he did in fact find the vault...but it was empty)
Final film appearance of Michael Oliver.
In the last scene with Dillinger and Capone, Capone is playing music from Don Giovanni. It is the exact same spot in the opera that Salieri is watching in Amadeus. Both Salieri and Capone are played by F. Murray Abraham, and he also appears in The Bonfire of the Vanities, where the opera Don Giovanni is performed in one scene.
Kimberly Campbell's debut.