Revealing mistake: When the mounties are attacking Johnson's cabin, one of the men with them crawls into a bear trap. You can plainly see that the jaws of the trap are made of rubber or some other soft material when he struggles.
Revealing mistake: Just after Charles Bronson throws his rifle across a ravine in the middle of the trackless Canadian wilderness of 1932, the film cuts to a wider camera shot that shows a modern highway guardrail fifty feet away. (Visible on AMC's full screen presentation.)
