It's a rule that big blockbusters with big openings take big hits their second weekend, but Watchmen's 67% drop is more akin to notoriously frontloaded horror films than to tentpole releases. Look for $120 million in North America at the end of the day, which is shy of the $150 million production budget -- though the foreign number, already up to $50 million, should help. Elisabeth has more on the implications of this here.

Race to Witch Mountain won the weekend with $25 million, which is strong but not outstanding: didn't everyone think that the Rock would be a huge superstar draw by now? He didn't open this film; Witch Mountain's success is due to Disney's shrewd (and accurate) marketing of it as breezy family sci-fi -- and the only new family offering since Coraline.

The Last House on the Left opened to $14.6 million and third place, which won't put it in the horror remake pantheon, but probably makes Universal happy -- the film was cheap, and it opened on under 2500 screens (chump change these days). The goofy sex comedy Miss March opened to a meager $2.4 million, squeaking into the top 10. And in its seventh weekend of release, the Liam Neeson actioner Taken continues to groove along, dropping under 10% and passing $125 million.

The full top 10 after the jump.

1 - Race to Witch Mountain (Disney) - $25.00 ($7,844) - $25.00
2 - Watchmen (Warner Bros.) - $18.07 ($5,004) - $86.01
3 - The Last House on the Left (Universal) - $14.66 - ($6,105) - $14.66
4 - Taken (Fox) - $6.65 ($2,327) - $126.83
5 - Tyler Perry's Madea Goes to Jail (Lionsgate) - $5.13 ($2,329) - $83.21
6 - Slumdog Millionaire (Fox Searchlight) - $5.03 ($1,949) - $132.63
7 - Paul Blart: Mall Cop (Sony) - $3.10 ($1,359) - $137.77
8 - He's Just Not That Into You (New Line) - $2.90 ($1,537) - $89.00
9 - Coraline (Focus) - $2.66 ($1,502) - $69.14
10 - Miss March (Fox Searchlight) - $2.35 ($1,349) - $2.35

Next week: Duplicity (which has been getting fantastic early reviews), I Love You Man (which just opened SXSW to mixed-to-positive notices) and the Alex Proyas/Nic Cage sci-fi flick Knowing.