10,000 B.C movie poster

Movie-goers went hunting for their inner caveman as they sat in the dark for the prehistoric adventure "10,000 B.C.," which led the weekend box office with $35.7 million, according to studio estimates Sunday.

The Warner Bros. visual effects spectacle, which follows a band of people struggling to survive amid woolly mammoths, saber toothed tigers and human marauders, also took in $25.3 million in 20 overseas markets where it began rolling out Wednesday.

Opening in second place was Disney's Martin Lawrence comedy "College Road Trip," which pulled in $14 million. Lawrence stars as an overprotective dad who tags along with his daughter (Raven-Symone) on her girls-only trek to choose a college.

Both movies put in decent numbers despite bad reviews.

"10,000 B.C." came in well behind the openings of past blockbusters from director Roland Emmerich ("Independence Day," "Godzilla"), whose best debut came four years ago with "The Day After Tomorrow" at $68.7 million.

"Those movies opened up in the summer. We're very strong for this time of year," said Dan Fellman, head of distribution for Warner.

Fellman said Emmerich's films tend to do better internationally, including "The Day After Tomorrow," which topped out at $186.7 million domestically and did nearly twice that business overseas.

"10,000 B.C." opened at No. 1 in 19 of its 20 foreign markets, among them Spain, Mexico, Germany and Australia, said Veronica Kwan-Rubinek, head of international distribution for Warner.

Overall business was off compared to the same time frame a year ago, an almost inevitable decline given that the blockbuster "300" opened with $71 million over that weekend in 2007, twice the haul of "10,000 B.C." The top-12 movies took in $91.8 million, down 34 percent from the same weekend last year.

It was the fourth straight weekend that revenues fell, cutting into a surge in movie-going earlier this year. Attendance is up just 0.5 percent so far in 2008 compared to a year ago, according to box office tracker Media By Numbers.

"The advantage we've been enjoying over the last couple of months has really taken a punch in the gut," said Paul Dergarabedian, Media By Numbers president.