Continuity: When Albert Johnson jumps into the top of a tree, he first throws his backpack off the hill but leaves his rifle. After he gets to the base of the tree both his backpack and rifle are there.

Continuity: As the posse is attacking Johnson's cabin, one man runs up and kicks down the door. Johnson shoots him, then the door swings back and closes on its hinges again.

Continuity: In the scene where Carl Weathers gets killed, he is on the ground with his left arm lying across his forehead. The camera cuts away to Lee Marvin who walks back from the edge of the cliff to Weathers, and in the next view of Weathers, Weathers' other arm - his right - is now across his forehead.

Revealing: 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: 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.)

Factual error: During car chase in Northern Illinois they are passing by palm and cypress trees, which are not indigenous to Illinois.