Guardians of the Galaxy was on top again at the box office over the Labor Day weekend, taking in an estimated $22.2 million. In the five weeks since its release, the film has earned more than $553 million worldwide. Teenage Mutant Ninja Turtles finished in second with an estimated $15.7 million. 

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The weekend’s only new release, the thriller As Above, So Below, debuted in fifth place with $10.3 million in ticket sales. 

According to The Hollywood Reporter, North American revenue for the 2014 summer movie season is estimated to be $4.05 billion, an eight-year low.  According to the trade paper, revenue is down 15 percent from last year’s record take of $4.75 billion.

Here are the top ten movies from Friday through Monday, with estimated ticket sales, according to The Hollywood Reporter:

1. Guardians of the Galaxy, $22.2 million.
2. Teenage Mutant Ninja Turtles, $15.7 million.
3. If I Stay, $11.6 million.
4. Let's Be Cops, $10.6 million.
5. As Above, So Below, $10.3 million.
6. The November Man, $10.2 million.
7. When the Game Stands Tall, $8 million.
8. The Giver, $6.3 million.
9. The Hundred-Foot Journey, $6.3 million.
10. The Expendables 3, $4.6 million.

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