The thriller "Prisoners", starring Hugh Jackman and Jake Gyllenhall, debuted at No. 1 in this weekend's box office with an estimated $21.4 million.

Last week's No. 1, "Insidious: Chapter 2", fell to second place with $14.5 million, while "The Family", starring Robert DeNiro, came in third with $7 million.

The top ten:

"Prisoners," $21.4 million
"Insidious: Chapter 2," $14.5 million
"The Family," $7 million
"Instructions Not Included," $5.7 million
"Battle of the Year," $5 million
"We're the Millers," $4.7 million
"Lee Daniels' The Butler," $4.3 million
"Riddick," $3.7 million
"Wizard of Oz: An Imax 3D Experience," $3 million
"Planes," $2.9 million