Factual error: When the Feds are going to the log cabin, while they are outside, gearing up, Arnold casually attaches a silencer, and pulls back the slide of his pistol, but the slide stays in the rearward position, a condition which should only occur when an empty magazine is in the weapon. Arnold notices and tries to push it forward, this doesn't work so Arnold hides it with his hand for the remainder of the scene. (00:42:50)
Factual error: In the train wreck scene at the end of the film, we hear the railroad warning bell clanging, the train horn blaring, James Caan and friends screaming, the fiery roar of the impact, and the rumble of the train plowing through the wreckage. In reality, all of these sound effects would have been drowned out for the duration of the scene by the ear-splitting, squealing screech of powerful railroad brakes that the engineer would have applied long before an unavoidable impact. Omitting the sound of railroad brakes is still a common factual error in modern train-collision sequences.Charles Austin Miller
Factual error: All the containers have sheet metal covering the bottom, not visible bottom crossbeams as they should.