In a week that saw only two new movies open, it was a plucky chicken that took top honors at the US box office this weekend, according to records by Box Office Mojo.

"Chicken Little," Disney's first computer-generated animation foray after disolving its partnership with Pixar Animation, ruled the roost at the box office, with a very healthy $40.1 million in receipts. Compared to recent weekend box-office numbers, the film is a box-office success. But when compared to the $70.5 million take of "The Incredibles," Disney's last film done in partnership with Pixar, "Chicken Little" seems to prove that Disney still has a ways to go to bring in theater-goers.

This week's other new film, "Jarhead", starring Jake Gyllenhaal and Jamie Foxx, landed in second this week with $28.8 million. Based on Anthony Swofford's best-selling memoir, the film opened in 1200 less theaters than the number one film, but it still managed to bring in more than half as many viewers with its story of marines at war.

Last week's number one film, the gruesome sequel, "Saw II," slid to third, but held with a still respectable $17.2 million take, bringing its two week total to just over $60 million. Last week's Halloween opening certainly helped with those numbers, but this week proves horror fans are still hungry for more.

Two critically-acclaimed films opened in wider release this week, helping secure them spots in the lower half of the top ten. George Clooney's biopic, "Good Night, and Good Luck" added 385 theaters to bring its box office total to $11 million after 5 weeks. Adding 481 theaters helped "Shopgirl," based on the Steve Martin-penned novel, bringing its total draw to $3.5 million in its three weeks out.

All totals are based upon actual Friday and Saturday ticketing, as well as an advanced estimate of Sunday's receipts. Here is this weekend's estimated box office champs:

1. "Chicken Little," $40.1 million. (BellaOnline review)

2. "Jarhead," $28.8 million.

3. "Saw II," $17.2 million.

4. "The Legend of Zorro," $10 million.

5. "Prime," $5.3 million.

6. "Dreamer: Inspired by a True Story," $4.8 million.

7. "Good Night, and Good Luck," $3.1 million.

8. "The Weather Man," $2.9 million.

9. "Shopgirl," $2.5 million.

10. "Flightplan," $2.3 million.