Continuity mistake: After the cage fight, Chick Gandil gives Speed the money putting it in his right hand. Next shot and Coburn pulls back...his left hand. (00:53:40)
Continuity mistake: In the fight at the dock where Robert Tessier makes his first appearance, he repeatedly hurts his young opponent letting him hurt his hands punching his bald dome. He parries a kick and knocks the youngster down with a cross. Pay attention to the guys by the donut on the boat; the guy in the mustard coat has his hands on/off the railing between shots. The group of four by that life preserver changes position even more noticeably a few seconds after when Henry gives a proper beating and yells "Somebody help this kid up." (00:21:30)
Continuity mistake: Speed is having oysters after the losing effort with his first combatant. He glances back at his table and spots a smiling Charles Bronson suddenly there. Notice the position of the towel; when he gets back to the table with his refill of mussels a moment later, the towel changed position. (00:08:05)
Character mistake: In the first fight, there's a reaction shot where Speed shouts jubilant "Yes, yes!" when his own fighter misses with his attack and doubles over hit by a painful kick in the gut. That's a mighty weird thing to cheer on. (00:07:00)
Audio problem: The very first punch we see thrown in the movie happens when Spencer 'Speed' Weed 's man, 'Chuck Boy', swings at the opponent. It is a wide shot, and even from that distance you can see a lot of light between the haymaker and the opponent's face, but of course there's a thunderous sound as if the guy got socked hard in the mush. (00:05:45)
Factual error: When Bronson is walking into the city through the railroad deposit, he walks by unused wagons branded Missouri Pacific Lines. The wagon bears the slogan "Route of the Eagles" which was coined and standardized on wagons only in the late 40s. The movie is set in the depression years. (00:02:45)
Other mistake: Bronson arrives in town hitching a ride in a boxcar. He hops off and begins walking along a different track. In the next shot, you can see in the background the same freight train he left, already moving in the opposite direction. (00:02:10)
Continuity mistake: Look at Charles Bronson's sideburns in his close-ups on the moving train at the beginning of the beginning of the movie. The hair grows longer when it gets closer to the hat and to the top of his ear. When he hops off the train, his hair appears to have a much closer shave, evened well above the ear. (00:01:35)
Factual error: The movie is set during the Great Depression, in 1933, but Charles Bronson gets in town aboard of a freight train pulled by an EMD NW5 diesel locomotor, introduced over a decade later. (00:01:15)
Factual error: As the protagonists say goodbye at the end of the movie, Speed pulls over in a railroad deposit. The wagon he stops by shows an odd graffiti. Upon further inspection, you can tell that it's actually an attempt to conceal the giant logo (the so called "split rail" logo) of the Illinois Central Railroad, a logo used by the company between 1966 and 1972, way after the period the movie is set, in the 30s, when the logo would have been the green and yellow diamond one. (01:28:30)
