According to the boxoffice tracking site boxofficemojo.com, the teen-oriented suspenser took in an estimated $3.3 million for the day, as it aims to cross the $50 million mark this weekend.
Buena Vista's "The Invisible," a PG-13 supernatural thriller that was also aimed at teen audiences, arrived in the second spot with an estimated $3 million.
That left Paramount's bow of the more adult-oriented thriller "Next," starring Nicholas Cage, debuting in a weak third position with an estimated $3 million.
Lionsgate's actioner "The Condemned," starring "Stone Cold" Steve Austin, bowed in eighth place with just an estimated $1.
3 million.