"Dawn of the Planet of the Apes" held on to the top spot in this weekend's box office for the second week in  a row, taking in an estimated $36 million.

"The Purge: Anarchy" debuted in second place with $28.3 million, and the animated "Planes: Fire and Rescue" came in third with $18 million. "Sex Tape", the raunchy comedy starring Cameron Diaz and Jason Segel, finished at a disappointing fourth place with $15 million.

The top ten:

"Dawn of the Planet of the Apes," $36 million
"The Purge: Anarcy," $28.3 million
"Planes: Fire and Rescue," $18 million
"Sex Tape," $15 million
"Transformers," $10.5 million
"Tammy," $7.6 million
"22 Jump Street," $4.7 million
"How to Train Your Dragon 2," $3.8 million
"Maleficent," $3.3 million
"Earth to Echo," $3.2 million

Figures courtesy of Boxofficemojo.com