Continuity mistake: Captain Crane removes a failsafe key, which is hanging outside his uniform collar, from around his neck. It wasn't there in the previous shot. (00:10:30)
Voyage to the Bottom of the Sea (1964)
1 continuity mistake in Doomsday
Starring: Richard Basehart, David Hedison, Del Monroe, Robert Dowdell
Continuity mistake: Interior shots of the flying sub sows the sub rocking violently but exterior shots show the sub lying still on the sea floor.