Trains magazine's, Greatest Train Movies, special magazine edition left out these two. Murder In The Private Car & Bright Victory, 1951. They have both been on TCM recently.
Murder In The Private Car, 1934, has a scene where the private car is uncoupled from the train while on an upward grade, by none other than, the villian.....Ha, ha, ha ,ha......... The car picks up speed as in starts back down the grade. Of course, the villain has damaged the emergency brake system. Miraculously as the private car reaches a switchyard, every switchman throws each switch in the proper direction, thus avoiding a collision with numerous freight cars parked on many sidings.
Another train, the one with the hero, rushes to catch up with the ever speeding private car. It's a steam loco that eventually catches up with the runaway private car. Oh, and there's one more catch. The villain has set explosives on board the private car. And bump will set them off. So the locomotive finally catches up with the private car and is a few feet away. One of the men on board the private car yells to the locomotive engineer not to try and couple with the car. The engineer must have Superman's ears because he heard the order over the roar of his locomotive.....LOL
So as the locomotive is following the private car each passenger jumps onto the pilot deck of the steam locomotive. Wow, they should try out for the Olympics ! Naturally, the porter is the last to make the leap. And that only happened when the rest of the passengers saw him at the vestibule door.
In Bright Victory a WWII soldier comes home blinded by combat. Near the end of the film is a nice couple of shots of Broad Street Station platforms. One as he arrives in Philly, the second scene is of the interior near the gates, as he leaves to go back to his duty station. A beautifully spotless, shiny GG1 #4849 along with tuscan passenger cars, also freshly washed, enters the first scene.