Moviegoers went hunting for their inner caveman on the weekend, spending $35.7 million to give the prehistoric adventure 10,000 B.C. top spot at the box office, according to studio estimates Sunday.

"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 [Roland 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.