'Centurion'

Just now hearing about this at today's LAT. I love this stuff. Here's a blurb:

A Roman soldier (Michael Fassbender) leads a small band of troops on a mission to rescue a key Roman general after becoming trapped in the territory of their sworn enemies in this period action-adventure film from director Neil Marshall (The Descent, Doomsday). The year is A.D. 117: despite the growing strength of the Roman Empire, a fierce tribe known as the Picts has prevented Hadrian's armies from conquering northern Britain. The Picts offer a devastating display of their guerilla power when they raid a Roman frontier fort, and Quintus just barely manages to escape with his life. Thirsting for revenge, Quintus joins General Virilus' Ninth Legion as the squadron begins traveling north on a mission to find and kill Gorlacon, the leader of the Picts. That mission is complicated when the Ninth Legion is ambushed and General Virilus is captured, leaving his men stranded behind enemy lines. Now, as the Quintus and the surviving members of the Ninth Legion are hunted from the shadows, they prepare to make one last, desperate bid to save General Virilus and reach the Roman frontier before being captured or killed by the Picts.