Apocalypto, Mel Gibson's controversial -- and violent -- account of the fall of the Mayan civilization, debuted at the top of the home video sales and rental charts last week, replacing Pan's Labyrinth, the previous champ. Home Media Retailing magazine said that the Gibson film generated an estimated $6 million from rentals, while Labyrinth was close behind with $5.6 million, bringing its two-week gross to $12 million. Epic Movie debuted at No. 3 on the rental chart with $5.4 million, while Clint Eastwood's Letters from Iwo Jima bowed at No. 4 with $4.4 million.