Horror Express
Directed by Eugenio Martin
1972 • R • English • 88 min.
Available on Tubi — https://tubitv.com/movies/11475/horror-express
Trailer at https://www.youtube.com/watch?v=4Qs-MjCStxY
It has many of the trappings of a Hammer movie — a monster, a period setting, and of course legendary actors Christopher Lee and Peter Cushing — but it was actually made in Spain. The plot is basically The Thing on a train, with a shapeshifting alien wreaking havoc on the travelers.
Cast: Christopher Lee, Peter Cushing, Silvia Tortosa