Epic filmmaking has fallen out of favor, butThe Eaglefights hard to bring it back. Marcus Aquila (Channing Tatum) chose to lead a Roman garrison in occupied Britain because that's where his father lost a military standard--a metal eagle, representing the glory of imperial Rome--on an expedition into the northern wilds. To reclaim his family honor, Aquila sets off into native territory to recover the eagle, with only a slave named Esca (Jamie Bell) to help him--but the more Aquila learns about Esca's history, the more he has reason to doubt his slave's loyalty.The Eaglestarts with engaging momentum; this is a work of fiction, but there's an impressive commitment to the details of life, evoking the sights, sounds, and smells of a raw and brutal time. (Director Kevin Macdonald began as a documentarian, which no doubt contributes to his appreciation for grit and sweat.) Tatum is not the most versatile actor but he has enough solid charisma to anchor the movie; Bell's fluid emotional presence keeps their relationship dynamic. The movie loses steam in the last third, as the outcome is never really in doubt and the plot mechanics start to feel a bit rote. But for anyone with an interest in the era, or who simply enjoys a taste of blood and thunder,The Eaglehas pleasures aplenty.--Bret Fetzer