Murder on the Orient Express (1974) - Based on Agatha Christie's novel, it follows detective Hercule Poirot solving a murder mystery aboard the famous train.
The Taking of Pelham One Two Three (1974) - A suspenseful thriller where a group of criminals hijacks a New York City subway train.
Strangers on a Train (1951) - Directed by Alfred Hitchcock, it's a psychological thriller about two strangers who meet on a train and discuss swapping murders.
Snowpiercer (2013) - A dystopian sci-fi film where the last survivors of humanity live aboard a perpetually moving train after a failed climate-change experiment.
The Darjeeling Limited (2007) - A comedy-drama where three estranged brothers reconnect while traveling through India on a train called the Darjeeling Limited.
The Lady Vanishes (1938) - Another Hitchcock classic, about a young woman who disappears from a train traveling through Europe, leading to a mysterious and suspenseful plot.
Unstoppable (2010) - A thriller based on true events about a runaway freight train and the efforts to stop it before it causes a disaster.
Source Code (2011) - While not entirely on a train, a significant portion of the film involves the protagonist reliving a train bombing scenario to prevent future attacks.