Runaway Train (1985)

Continuity mistake: When you first see the freight train that eventually would get its caboose smashed, the locomotive is a big one with lots of snow on the front. In all the other shots of this train, it`s a smaller locomotive, and it has no snow on the front.

Manny: You do what you have to do, I'll do what I have to do. Whatever happens, happens.

Trivia: This is, the way I see it, a VERY serious mistake by the filming crew of the movie. The Alaska Railroad, where the shooting of the movie took place, wanted all their logos and paint schemes of all the trains in the movie to be camouflaged. But yet, on the first shot of the locomotive of Eastbound 12 (yes, that is the shot of it before it mysteriously changes from ONE GP40 to TWO ALCo MRS's), you can see the blue and yellow paint scheme of the Alaska Railroad. On the DVD you might even be able to see the printed ALASKA on the side of the loco.

Question: Why would the loco derail if the siding switch was set to the siding where the freight train went?