By Bill Wine

PHILADELPHIA (CBS) – With the summer movie season winding down on August’s fourth weekend, the box office was characteristically weak, as holdover films dominated the marketplace.

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The action thriller, The Expendables 2, last weekend’s leader, made it two weekends in a row on top, even though it took in less than $14 million.

Second place went to The Bourne Legacy, which earned an estimated $9 million.

Third was the animated attraction, ParaNorman, with a total of $8 million.

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And fourth was the political comedy, The Campaign, with $7 million.

The weekend’s three new mainstream releases — all thrillers — finished well below the leaders: the suspense thriller, Premium Rush, took in $6 million, good for sixth. The action thriller, Hit and Run, placed eighth with $5 million. And the horror thriller, The Apparition, was twelfth with $3 million.

Overall, industry-wide totals were just slightly ahead of last year’s pace.

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