"Expendables 2" topped the box office charts for a second week, but the big surprise came from a documentary on President Obama. "Expendables 2" took in an estimated $13.2 million, while runner-up "The Bourne Legacy" scored $9.2 million, and animated family film "ParaNorman" came in third with $8.5 million.

The documentary "2016: Obama's America" came in eighth with $6.2 million, but took in a respectable $5,940 per-screen average.

Here's the top ten.

"Expendables 2,' $13.2 million
"Bourne Legacy," $9.2 million
"ParaNorman," $8.5 million
"The Campaign," $7.4 million
"Dark Knight Rises," $7.1 million
"The Odd Life of Timothy Green," $7.1 million
"Premium Rush," $6.3 million
"2016: Obama's America," $6.2 million
"Hope Springs," $6 million
"Hit & Run," $4.6 million

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