Visible crew/equipment: When the Highway Patrol car pulls away from the house, the shadows of the film crew (wearing hats), the camera and a light pole are all outlined on its big white doors. (00:16:50)
Richard Diamond, Private Detective (1957)
1 visible crew/equipment mistake in A Cup of Black Coffee - chronological order
Starring: David Janssen
Revealing mistake: During the fistfight at the end, David Janssen's stunt double's face is visible several times. (00:23:30)