'Twilight,' 'Skyfall' leading Thanksgiving box office

"The Twilight Saga: Breaking Dawn Part 2" continued to lead the box office on Thanksgiving Day

No new movies have been able to challenge blockbusters "The Twilight Saga: Breaking Dawn Part 2" and "Skyfall," which continue to lead the box office over the first two days of the Thanksgiving holiday weekend.

Among a trio of new pictures, "Rise of the Guardians" is shaping up to be the worst