Factual error: When John Smith spins the J&B bottle in the middle of the road at the beginning, it stops showing the stippling on the bottom. Stippling wasn't invented until 1940, and the movie takes place during the Prohibition era. (00:02:35)
Factual error: When Smith shoots the first man with his twin .45s, the man flies back about 30-40 feet. In reality, he might fall back a foot or two, but he certainly wouldn't be propelled anywhere by simple bullets.
Factual error: The phones in town are crank type or candlestick type that require an operator,as mentioned by the hotel owner at the beginning of the film.John Smith calls Georgio at the telephone office by dialing the number,impossible on a system with no central office switching equipment.He would have just used the patch cords and pressed a button to ring the phone.