Batman may rescue Oscar ratings

Now he may be asked to save Oscar.

Though the film has become a magnet for trophy metal and turned the past two months into a running tribute to its late star, Heath Ledger, the movie's enduring legacy may be shaped by Thursday's Oscar nominations.

Ledger's portrayal of the demented Joker is considered a lock-nominee for best supporting actor (and he's the odds-on favorite to win it). Many also consider the comic-book adaptation a contender for other Academy Award honors, including best director, cinematography and editing.