Summer may be mindless-blockbuster season, but it’s got nothing on March, newly crowned home of gleefully brain dead movies with a “myth-torical” vibe: Last year, March spawned the massively successful 300, set in ancient—all together now—SPARTA! This year, it’s 10,000 B.C., a silly but ultimately winning popcorn flick set in an era in which saber-tooth tigers and big ugly birds roamed the earth and everyone wore dreadlocks—if not according to paleontologists, at least according to the filmmakers.