Entertainment writers and Hollywood moguls alike were busily conducting postmortems to determine the premature cause of death of Scott Pilgrim vs. the World , which opened over the weekend with just $10.6 million in ticket sales. The film had generated enthusiastic buzz, particularly on Twitter, following preview presentations at ComicCon last month, had received mostly positive reviews, received an average A grade from those who saw it. Writer-director Guillermo Del Toro, who directed the two Hellboy movies (like Pilgrim, they were based on a popular comic-book character), told today's (Tuesday) Los Angeles Times, "Comics that have a lot of personality like Hellboy or Scott Pilgrim make for memorable movies. ... But they require a hell of a lot more positioning and marketing. And even then, you are tossing a coin." A far safer proposition, said director Robert Rodriguez ( Spy Kids, Sin City, Machete ) are films like The Expendables . "For young audiences, they resemble what they are playing at home with their video games." Of course, that's what several critics said about Scott Pilgrim , too.

The top ten films over the weekend, according to final figures compiled by Box Office Mojo (figures in parentheses represent total gross to date) 1. The Expendables, Lionsgate, $34,825,135, (New); 2. Eat Pray Love, Sony, $23,104,523, (New); 3. The Other Guys , Sony, $17,408,501, 2 Wks. ($69,951,822); 4. Inception, Warner Bros., $11,285,051, 5 Wks. ($248,469,482); 5. Scott Pilgrim vs. the World, Universal, $10,609,795, (New); 6. Despicable Me, Universal, $6,971,355, 6 Wks. ($222,197,390); 7. Step Up 3-D, Disney, $6,905,201, 2 Wks. ($29,844,422); 8. Dinner For Schmucks, Paramount, $6,285,179, 3 Wks. ($58,785,547); 9. Salt, Sony, $6,219,502, 4 Wks. ($103,438,273); 10. Cats & Dogs The Revenge of Kitty Galore , Warner Bros., $4,190,426, 3 Wks. ($35,218,937).