Walt Disney Pictures Hannah Montana The Movie Rocks The Box Office

Never underestimate the power of a teen star. Walt Disney's "Hannah Montana: The Movie" opened this weekend earning $34 million; TWICE what Disney had predicted.

Miley Cyrus was very excited about the news, and blogged about it on her official Twitter feed: "omgomg! my fans rock! the movie is doing great you guys! omg AND its all cause of you!!!! I LOVE U ALL! IF YOU HAVENT SEEN IT YET CHECK IT!"

In the film, Cyrus struggles with living her double life, just as on her TV show.  She takes a trip to Tennessee to sort through things, but it turns out that things only get more complicated.

The Disney Company was also surprised by the success. Chuck Viane, president of domestic theatrical distribution, said, "It caught us by surprise. No doubt about it. "Outside of Wow! what can you say?"

The film topped the opening weekend for Cyrus' previous film, "Hannah Montana/Miley Cyrus: Best of Both Worlds Concert Tour". That film earned $31 million at its opening before going on to earn over $65 million total.