Other mistake: Bandoleer rounds don't fit any weapon in the show. When Pierce tries the Gatling gun, there is no magazine in it.
Other mistake: When Lomax enters the War Wagon after it has overturned, the safe door is already partially opened.
The War Wagon (1967)
2 other mistakes
Directed by: Burt Kennedy
Starring: John Wayne, Kirk Douglas, Howard Keel, Robert Walker Jr.
Genres: Western
Visible crew/equipment: After explosion and the flour wagon runs driverless spilling the flour barrels you can see a man through an opening under the seat driving.
Lomax: You got a bargain, Big Man.
Taw Jackson: How's that?
Lomax: Two five-hundred dollar days for the price of one.