Other mistake: In the scene where Dillinger and his gang raid a bank and take the bank manager and a teller hostage, they come out shooting with machine guns and jump into and on the running boards of the getaway cars, all through this encounter the bank manager shows no concern for his own safety, no reaction whatsoever to flying bullets and loud gunfire, very strange.
Public Enemies (2009)
1 other mistake - chronological order
Directed by: Michael Mann
Starring: Johnny Depp, Christian Bale, David Wenham, James Russo
Factual error: In one scene, focused on a period wood-staked pickup truck parked on the street, you can see clearly a modern Jeep Grand Cherokee parked on the other side of the street.
Melvin Purvis: The only way you're walking out of this jail cell is when we take you out to execute you.
John Dillinger: Well, we'll see about that.
Trivia: One of the bank scenes were shot at the Little Bohemia Lodge, where there was an actual shoot-out between John Dillinger and the FBI in 1934.
Question: How was John able to communicate to Billie where he'd pick her up when she left the apartment dressed like a man? Their phone was tapped so he had to tell her somehow. Also, in the beginning, who was the woman with the little boy who asked John to take them with?