Goofs

(at around 21 mins) The gangsters are approaching, but when the car backs into the alley, too much time goes by before the gangsters actually pass.

In the emotional scene when Jan Ashe promises to give up Ace Wilfong, Stephen Ashe's hair changes between closeups and medium shots.

(at around 3 mins) Eddie puts creamer in the coffee a second time.

After the cross-examination finishes, Stephen Ashe begins his summation to the jury. However, he is the defense attorney, and the prosecutor takes the first summation. This "factual mistake" is, in fact, not an absolute, as it depends on the state where the trial is held. For example, in a criminal case (which this is) in the Commonwealth of Pennsylvania, the defense goes first and the Commonwealth last. (If it were a civil case in PA, the Plaintiff would go first.)

While racing in a convertible roadster with his mistress, Ace Wilfong is wearing a wide-brimmed fedora, which would have flown off his head almost immediately upon acceleration. Guys driving roadsters in those days wore tight-fitting caps to prevent this from happening.