Neil Marshall has basically been making the same movie his entire career, tweaking the formula here and there, refining the process, but ultimately still turning in survival horror about a group of well-trained individuals who find themselves facing overwhelming odds behind enemy lines. Dog Soldiers saw British special forces troops besieged by werewolves in a remote farmhouse. The Descent pitted cavers against subterranean beasts in the wilds of Appalachia. Doomsday threw a crack military squad into a post-apocalyptic Scotland. And then comes Centurion, a movie that is basically “what if it was Doomsday, but in Roman times?” Lucky for me and Marshall, I’ve enjoyed all his films. I liked Dog Soldiers a lot, absolutely loved The Descent, thought Doomsday was wonderful, and was pretty damn happy with Centurion. As far as I’m concerned, he can keep on making the same movie for another ten years or more, and I’ll keep watching.