Boosted by unexpectedly strong word-of-mouth and generous reviews, ‘Transformers: Dark of the Moon‘ was number one for the second weekend in a row, becoming the top-grossing movie of 2011 thus far with a total take of $261.0 million.

Coming in second, the Jennifer Aniston-featured dark comedy ‘Horrible Bosses‘ earned an estimated $28.1 million, while the family flick ‘Zookeeper’ came in third with $21.0 million.

Here’s a recap of all five of this weekend’s top box-office earners.

‘Transformers: Dark of the Moon’ – $47.0 million (4,088 screens), $261.0 million total