This was a lot different than I expected (In a good way)
I thought from the title that the story was going to take place entirely on a train similar to how "Dial M for murder" and "Rope" take place in one setting.
I'd never seen this before but then I realised i'd seen individual scenes stolen/inspired from this that were in other movies. This film is like an amalgam of scenes that other movies took from. It's pretty crazy and shows how influential Hitchcock was. Robert Walker was awesome too.