'Transformers: Dark of the Moon' keeps US box office lead

Transformers: Dark of the Moon has remained at the top of the US box office for the second weekend in a row.

The Michael Bay-directed epic took $47 million this weekend, bringing its overall domestic total to $261 million.

The Paramount Pictures action feature has now surpassed The Hangover Part II as the year's highest grossing film so far.

R-rated comedy Horrible Bosses lands in second place taking $28 million, while the Kevin James-led family comedy Zookeeper opened to a disappointing $21 million.

Pixar sequel Cars 2 took $15.2 million, while Bad Teacher rounded out the top five with $9 million.

Next weekend sees the highly-anticipated release of Harry Potter and the Deathly Hallows: Part 2, the final entry in the long-running film franchise.

This week's US box office top ten in full (studio estimates):

1. (1) Transformers: Dark of the Moon - $47,000,000
2. (-) Horrible Bosses - $28,100,000
3. (-) Zookeeper - $21,000,000
4. (2) Cars 2 - $15,209,000
5. (3) Bad Teacher - $9,000,000
6. (4) Larry Crowne - $6,264,000
7. (6) Super 8 - $4,825,000
8. (5) Monte Carlo - $3,800,000
9. (7) Green Lantern - $3,125,000
10. (8) Mr. Popper's Penguins - $2,850,000

Watch the trailer for Transformers: Dark of the Moon below: