Participants can earn points for their school by logging on to the film's official MySpace profile, completing online tasks, and voting via text message.

"HSM3 is the biggest movie in a franchise that is already a worldwide phenomenon. It's all about the issues you face during senior year, especially getting ready for the next chapter of your life. We thought this contest was a great way to include every high school in the country in the fun of HSM3," said Walt Disney Studios Motion Pictures president marketing Jim Gallagher.

"Technology, entertainment and MySpace's community are coming together creating once-in-a-lifetime experience for High School Musical's passionate fans," said MySpace president sales and marketing Jeff Berman.

The winning school will receive a senior trip that includes roundtrip coach airfare, hotel accommodations for two nights, airport and hotel transfers in the destination city, admission to the theme park, Disney gift cards to cover meals, and admission to the Disney Grad Nite event. The winning school also receives a HSM3 celebrity pep rally starring Natasha Bedingfield, the UK female pop star in the US, with special guest Menudo.