Parents need to know that Daybreakers is an action-oriented vampire movie that's heavy on blood, gore, and violence -- in other words, it's no angsty, teen-friendly Twilight. Be ready for disturbing images that depict hungry vampires mutating into horrible creatures, as well as some characters enduring excruciating pain as a way to be "reborn." There's also plenty of strong language (including "f--k" and "s--t") and smoking. The movie has a slightly veiled message about the excessive consumption of natural resources, and the main character actually has admirable traits -- including honor, decency, and selflessness -- but some of that gets lost amid the over-the-top, comic book-like tone and gallons of spilled (and splattered) blood.