Fans Flock to See Zac Efron

Miley Cyrus proved it last week and Zac Efron drove the point home this weekend: it's a tween world. The rest of us are just living in it.

Efron led 17 Again to the head of this weekend's box office. Take a look at the complete top five:

1. 17 Again: $24.1 million
2. State of Play: $14.1 million
3. Monsters vs. Aliens: $12.9 million
4. Hannah Montana: The Movie: $12.6 million
5. Fast & Furious: $12.3 million