The second "Paranormal Activity" sequel has scared up big audiences in America, grossing a staggering $54 million in its opening weekend.
The critically-acclaimed horror film has ended "Real Steel's" two-week run at the top of the U.S. box office.
Other new releases fared poorly - director Paul W.S. Anderson's "The Three Musketeers" revamp and Rowan Atkinson's "Johnny English Reborn" were big flops.
The Three Musketeers grossed a disappointing $8.8 million and comedy "Johnny English Reborn" made only $3.8 million at the box office.
Watch ""Paranormal Activity 3"tops box office; Murray trial's week ahead"