High School Musical (and Zac Efron) fans can breathe a sigh of relief: The third and final installment of the Disney franchise is set to start filming in the spring and all the original cast members, including Zac, Vanessa Hudgens and Ashley Tisdale are coming back. High School Musical 3: Senior Year is set to hit theaters - not the Disney channel - this October. "The success of this franchise has been nothing short of amazing," said Disney Channels Worldwide president Rich Ross. "We're thrilled with the connection fans have to the characters, and we're very excited to see the High School Musical story continue on the big screen." And so are millions of teenagers everywhere!