Although Tom Cruise's new thriller, Collateral, took the top spot at the box office this weekend, it did so with a measly haul of $24.4 million. By contrast, the shark-infested indie Open Water made a cool $1 million playing in only 47 theaters. (Maybe now some savvy studio chief will smell money in the water and greenlight Meg, that long-in-the-works feature based on Steve Alten's best-seller about a prehistoric great white.) Trailing Collateral in the top five were: The Village ($16.6 million), The Bourne Supremacy ($14.1 million), The Manchurian Candidate ($10.8 million) and a flick we like to call the final nail in the coffin of Brittany Murphy's career as a romantic-comedy leading lady, Little Black Book ($7 million).