Los Angeles-AP -- The mutants of "X-Men" are stronger than ever at the box office.
The superhero sequel "X2: X-Men United" has debuted with nearly 86 (m) million dollars domestically -- making it the fourth-best opening-weekend gross ever. It's also about a 58-percent increase over the 55 (m) million dollar first weekend of the original "X-Men" three years ago.
X-2 teams good and bad mutants with superhuman abilities that include telepathy and shape-shifting against a human enemy who has hatched a plan to destroy their race.
"The Lizzie McGuire Movie" opened in second place. It stars Hilary Duff in a big-screen adaptation of her Disney Channel series about a young teen coping with adolescence. According to studio estimates, the movie took in 17 (m) million dollars, with an audience of mostly young girls.