Following months of hype, curiosity and controversy, Mel Gibson's provocative religious opus, The Passion of the Christ, makes its debut in U.S. theaters today. The film is garnering mostly positive reviews from critics, including our own Maitland McDonagh, who describes it as "never dull — no mean feat, given that it spends two hours telling a story whose end is widely known." Unspooling on a blockbuster-worthy 4,600 screens, Passion could bring in as much as $50 million over the next five days, insiders predict. And a quick heads-up: If you're planning to see the film, just make sure you stick around through the end credits. Word is the outtakes are hysterical.