Weekend Box Office Estimates for September 6-8, 2013: "Riddick" Dominates

Vin Diesel's Riddick, the third installment in the sci-fi franchise, easily won the weekend box office race, earning an estimated $18.7 million, which was almost double that of its closet competitor, Lee Daniels' The Butler, which captured second place with an estimated $8.9 million. The little movie that could, Instructions not Included, continued its impressive box office run by adding slightly more than $8 million in its second weekend. Fourth place belongs to We're the Millers, which has held up well after five weeks of release and earned nearly $8 million over the three day frame. Since its debut, We're the Millers has earned almost $125 million. Finally, Disney's Planes flew into fifth place, with just over $4 million.

1. Riddick - $18.7 (Universal)

2. Lee Daniels' The Butler - $8.9 (Weinstein Company)

3. Instructions Not Included - $8.1 (Lionsgate/Pantelion)

4. We're the Millers - $7.9 (Warner Bros./New Line)

5. Planes - $4.3 (Disney)

6. One Direction: This Is Us - $4.1 (Sony/TriStar)

7. Elysium - $3.1 (Sony/Tristar)

8. Blue Jasmine - $2.7 (Sony Pictures Classics)

9. Percy Jackson: Sea of Monsters - $2.5 (Fox)

10. The World's End - $2.3 (Focus)