Continuity mistake: As the sub prepares to torpedo a battleship sitting in the harbour, Cary Grant is lining up the shot and we see two large trucks slowly passing by a parked truck. When the misfire occurs and the torpedo runs aground and hits the truck, he utters the famous line "We sunk a truck!" and the two vehicles in the background are missing. In real time, there is no way these two lumbering vehicles would have passed far enough down the road to be out of sight.
Harry O
15th Oct 2025