The film is based on a successful computer game

The sci-fi movie - the latest from Fox's successful Alien and Predator film, comic book and computer game franchise - grossed $38.3m (�20.8m).

It replaces Tom Cruise film Collateral at the top of the US box office. The Michael Mann movie fell to third place.

Disney sequel Princess Diaries 2: Royal Engagement, starring Anne Hathaway and Julie Andrews, opened at number two, , according to preliminary figures.

US BOX OFFICE 1 Alien vs. Predator 2 Princess Diaries 2 3 Collateral 4 Yu-Gi-Oh! The Movie 5 The Bourne Supremacy Source: Exhibitor Relations

Thriller Collateral, starring Cruise and Jamie Foxx, took $16m (�8.7m) in its second week.

Animated film Yu-Gi-Oh: The Movie - about the children's card game - was another debut at the weekend and came in fourth with $9.3m (�5.05m), while The Bourne Supremacy, starring Matt Damon, took $8.3m (�4.5m).

M Night Shyamalan's horror thriller The Village, which debuted two weeks ago, was in sixth place with $7m (�3.8m).

It was followed by The Manchurian Candidate, with $6m (�3.25m), the comedy Little Black Book with $3.7m (�2m), Will Smith's I, Robot with $3.5m (�1.9m) and Spider-Man 2 with $3.4 (�1.85m).

Final weekend figures are due out on Monday.