For the final shopping weekend before Christmas, the Disney sequel National Treasure: Book of Secrets took the top honors, but all of last week's other new releases had to take a backseat to the previous week's holdovers I Am Legend and Alvin and the Chipmunks, both of which continued to do brisk business with Legend raking in a whopping total of $137.5 million since its release. The Chipmunks took in $83.7 million over the last two weeks, pretty much guaranteeing that Alvin will finally get that hula hoop. Here are the numbers for last weekend:

1. National Treasure: Book of Secrets: $45.5 million.
2. I Am Legend: $34.2 million.
3. Alvin and the Chipmunks: $29 million.
4. Charlie Wilson's War: $9.6 million.
5. Sweeney Todd: The Demon Barber of Fleet Street: $9.35 million.

All of this week's new releases came out for Christmas day rather than the usual Friday, so we've got three new movies that hit theaters yesterday, as well as one that went into wider release.

Aliens Versus Predator: Requiem
What's It All About: The lead critters from the Aliens and Predator franchises duke it out once again, with several unfortunate humans getting between them.
Why It Might Do Well: There's always room at the box office for a big old science fiction special effects extravaganza. Unlike the first AVP, this one is rated R, giving the gore hounds more bang for their buck.
Why It Might Not Do Well: While the creature action in the series' previous installment had its moments, things like the plot and dialogue left me ice cold. is giving this a 14% rotten rating.
Number of Theaters: 2,563
Prediction: $18 million

The Great Debaters
What's It All About: Denzel Washington directs and stars in this film based on true events. Washington plays the coach of an East Texas college debate team who took on the team at Harvard in the 1930s.
Why It Might Do Well: Should offer a viable alternative to all the action and effects laden extravaganzas out there.
Why It Might Not Do Well: A war of words might be too low key for some.
Number of Theaters: 1,164
Prediction: $10 million

The Water Horse: Legend of the Deep
What's It All About: A young boy cares for a strange and rapidly growing creature hatched from an egg of unknown origin.
Why It Might Do Well:
An E.T.-esque tale that should attract those looking to bring the whole family.
Why It Might Not Do Well:
Alvin and the Chipmunks may have already burned out the holiday cute factor at the box office.
Number of Theaters:
$14 million