Revealing mistakes: In the scene where New York's East Side is being introduced, a set of headlights can be seen appearing and disappearing near the center of the shot.
Continuity: In the scene with the police and Mr. and Mrs. Batory at the waterfront, the sun goes up then down.
Crew or equipment visible: In the scene near the end where Garza is running along a street in New York, the car holding the camera (in the passenger window) is visible in the store windows, keeping pace with the actor as he stops and starts.
Continuity: When Muldoon and Halloran first question Ruth Morrison's mom, there are 4 or 5 78 RPM records on the couch she is standing behind. When she and Holloran sit down, the records are no where in sight.