<P> Stan Carrizosa, the winner of ABC's summer reality show, High School Musical: Get in the Picture appears in a music video "Just Getting Started" that is shown over the end credits of the theatrical release of the film . The show's other 11 finalists were featured in the music video as well . </P> <P> Zac Efron was quoted in People Magazine as saying, "I can tell you that if the script is good and if we all agree on a final script, then there's nothing that is going to hold us back from doing it . We have fun making these movies and that's very rare in this business ." Rumors persisted of ongoing salary disputes between Disney and the lead performers, particularly Efron . According to Rachel Abramowitz, as reported online by the Chicago Tribune, "an eclectic cross-section of Hollywood insiders think Efron should get a cool $5 million for High School Musical 3, the theatrical version of the franchise, which Disney hoped to make before the Writers Guild strike and Screen Actors Guild strike shut down Hollywood for several months . Efron declined to comment for the article, and although contract negotiations still are ongoing, sources say Efron is being offered a salary closer to $3 million, not $5 million, for the follow - up, which focuses on senior year at East High . Whatever the price, he's still perceived as a steal ." The movie was originally titled "Haunted High School Musical" with plans of a Halloween theme but was later scrapped . </P> <P> Ortega stated that pre-production would most likely start in January 2008 . Filming began May 3, 2008, at East High School in Salt Lake City, Utah . He stated that the script had been submitted before the writers' strike started and that they were developing music . He added that filming will happen in Salt Lake City, Utah (as the first two films), hinted that the plot will be something of the nature of the Wildcat's final year in High School and stated, "it looks like we've rounded up the cast ." </P> <P> Before filming began, the HSM3 board and cast held a press conference at East High School announcing the start of filming . The film would be released in theaters (in the United States) on October 24, 2008, though the film was to open in several countries including the UK at least one week earlier . The film had a $11 million budget and a 40 - day shooting period . The film was said at the time to be the final installment with the current cast . The London premiere was the biggest London premiere of all time . </P>

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