Video-game-turned-movie Doom topped a quiet weekend at the box office. (And I mean quiet. Receipts were down 27 percent compared to 2004.) The sci-fi flick, starring The Rock, grossed a so-so $15.4 million. Horse-racing family film Dreamer opened in second with $9.3 million, followed by Wallace & Gromit (No. 3 with $8.7 million), The Fog (No. 4 with $7.3 million) and Charlize Theron's Norma Rae update, North Country (No. 5 with $6.5 million).