( Entertainment Weekly ) -- It could n't top its predecessors , but `` X-Men Origins : Wolverine '' still brought in quite a haul , grossing an estimated $ 87 million for the opening weekend of the summer movie season . Hugh Jackman stars as the title character in `` X-Men Origins : Wolverine . '' The Hugh Jackman pic brought in a strong $ 21,225 per-theater average in 4,099 movie houses , despite generating mixed reviews . The film fell $ 15 million short of 2006 's `` X-Men : The Last Stand '' but it is still an enormous success for Jackman and director Gavin Hood . Matthew McConaughey 's `` Ghosts of Girlfriends Past '' generated an estimated $ 15.3 million for a second place bow . It 's not a shabby opening but it is far less than McConaughey 's previous romantic outings including last year 's `` Fool 's Gold '' ( $ 21.6 million ) or 2006 's `` Failure to Launch '' ( $ 24.2 million ) . ( Perhaps women were too busy checking out all those hunky mutants this weekend ? ) The two new openers did help the industry maintain its year-over-year increase of 16 percent . Also aiding that statistic was Beyonce Knowles ' `` Obsessed . '' Dropping a not-surprising 57 percent for its second weekend in theaters , the thriller earned another $ 12.2 million to put its ten-day gross at a shockingly strong $ 47 million . And Zac Efron 's `` 17 Again '' showed surprising stamina , too , grossing an additional $ 6.3 million its third weekend for a total take of $ 48.4 million . The other new wide release for the weekend was the anemic 3-D animated sci-fi film `` Battle for Terra . '' Opening on 1162 theaters , the Justin Long , Evan Rachel Wood-voiced feature proved to be little competition for the other 3-D movie in the marketplace . Dreamworks Animation 's juggernaut `` Monsters vs. Aliens '' grossed another $ 5.8 million its sixth weekend for the fifth slot in the rankings , while newcomer `` Terra '' could n't muster more than $ 1 million for a twelfth place in the box office derby . Summer has officially begun -- at least in Hollywood -- so expect a giant event film every weekend . Wolverine may have bowed mightily but with `` Star Trek '' hot on its heels next weekend , the Marvel superhero is going to need more than adamantium to maintain its box office lead . CLICK HERE to Try 2 RISK FREE issues of Entertainment Weekly . Copyright 2009 Entertainment Weekly and Time Inc. All rights reserved .
`` Wolverine '' takes the top slot at the box office , earning an estimated $ 87 million . `` Ghosts of Girlfriends Past '' took in an estimated $ 15.3 million for second place . Dreamworks Animation 's `` Monsters vs. Aliens '' grossed another $ 5.8 million . Check out the rest of the top 10 movies at the box office this weekend .