LOS ANGELES — Football season started early as Mark Wahlberg's "Invincible," a Walt Disney tale about a real-life walk-on who signed with the Philadelphia Eagles in the 1970s, debuted as the top weekend movie with $17 million.

The previous No. 1 flick, New Line Cinema's "Snakes on a Plane," lost altitude in its second weekend, falling to sixth place with $6.4 million, a steep 58 percent drop, according to studio estimates Sunday.

"Snakes on a Plane" has taken in $26.5 million in 10 days.

Estimated ticket sales for Friday through Sunday at U.S. and Canadian theaters, according to Exhibitor Relations Co. Inc.

1. "Invincible," $17 million.

2. "Talladega Nights: The Ballad of Ricky Bobby," $8 million.

3. "Little Miss Sunshine," $7.5 million.

4 (tie). "Beerfest," $6.5 million.

4 (tie). "Accepted," $6.5 million.

6. "Snakes on a Plane," $6.4 million.

7. "World Trade Center," $6.39 million.

8. "Step Up," $6.2 million.

9. "Idlewild," $5.9 million.

10. "Barnyard: The Original Party Animals," $5.4 million.