Fun flick that was a regular on the Saturday afternoon "Thriller" movie when I was a kid. Christopher Lee is a scientist type who, on a recent trip to Siberia, has discovered an ape-man type creature frozen in the ice. Lee, sure he is going to win some big scientist award or something for his find, decides to pack the creature in a big wood box and haul it across Siberia via the locomotive express. Other characters on the train are Peter Cushing playing a doctor, and several other minor people whom I'm not even sure what their point was, other than to serve as monster fodder and such. So imagine the scenario when you get a train full of people crossing Siberia with a now thawed out monster, eager for some action after a million years or what have you. It's not gonna be good let me tell you that. Actually, this film is not really a "monster on the loose" type flick or at least it's not what I really described. What I mean is, here you are watching this missing link thing prowling around, and you're thinking, "there is the monster" but the flick then sorta twists and goes a whole other direction. We soon find out that it's really an alien body hopper type creature ala "The Thing" that sucks brains and can adopt the intelligence of whomevers brain it ingests! After the beast is shot we get the old "who's the monster" type gig, and the format works quite well. Lee and Cushing are great as always and the whole thing moves along at a nice pace. Good stuff and a good one to watch with a younger monster fan since it's not in the least bit explicit, but just a little scary, though in a good way.