Alien vs. Predator: According to The Hollywood Reporter, 20th Century Fox's sci-fi monster match turned out to be a monster at the boxoffice this weekend as Alien vs. Predator racked up a spine-tingling estimate of $38.3 million.

The opening salvo from the Paul W.S. Anderson's "AVP" far exceeded expectations heading into the frame and deftly surpassed all previous openings of either franchise. The opening also bettered the debut of New Line's horror match, Freddy vs. Jason, which opened with $36.4 million.

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Fox continues to be on a roll at the boxoffice -- the opening for the PG-13-rated "AVP" marked the distributor's sixth consecutive film that debuted to the tune of more than $20 million. Meanwhile, Buena Vista's Princess Diaries 2: The Royal Engagement proved to be engaging the second time around as the Garry Marshall-directed romantic comedy placed second with a debut of an estimated $23 million.

The G-rated "Princess Diaries 2," starring Anne Hathaway and Julie Andrews, opened to slightly more than the $22.9 million the first film earned in its debut weekend, and since its Wednesday release has accumulated an estimated $37.2 million, just a bit less than the entire first week of The Princess Diaries.

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