It must be Christmas! Look at all the new DVD releases this week: Check out the sci-fi space adventure Serenity. Or watch Heath Ledger & Matt Damon in The Brothers Grimm. If you’re looking for romance, Must Love Dogs is a must-see. Four Brothers centers on siblings who seek revenge for their mother’s murder. If you prefer something scary, The Exorcism of Emily Rose can put you in the right mood. Or better yet, go the historical route and check out the World War II flick The Great Raid.