Actors Zac Efron (L) and Vanessa Hudgens attend the 19th annual Palm Springs International Film Festival Awards Gala in Palm Springs, California on January 5, 2008. (UPI Photo/Jim Ruymen).

Starring Zac Efron, Vanessa Hudgens, Ashley Tisdale, Lucas Grabeel, Corbin Bleu and Monique Coleman, "High School Musical 3: Senior Year" is scheduled to open Oct. 24.

Walt Disney Studios Motion Pictures U.K. said it released the first images from the film at http://www.image.net to tie in with the launch of the new trailer, which premiered Monday on the Disney Channel.

The trailer includes the new song "Now or Never," which is to be the first single released off the soundtrack.

The trailer also features all new footage from the movie.