For the show’s second season, which aired in 2005, he was promoted to the main cast.He also appeared in some films, including the Lifetime television film Miracle Run (2004), for which he earned a Young Artist Award nomination for his performance as one of two autistic twins.and was then accepted into the University of Southern California, but has deferred his enrollment to work on film projects.He also attended Pacific Conservatory of the Performing Arts, a community college located in Santa Maria, California, which provided him with the opportunity to perform as a "young player" during the years of 20.Later that year, he was seen reprising his role of Troy Bolton in High School Musical 2 (2007), which aired on the Disney Channel in August 2007.Efron reprised his role of Troy Bolton in High School Musical 3: Senior Year (2008), the first film in the High School Musical franchise to receive a theatrical release.
He began acting professionally in the early 2000s, and rose to prominence in the late 2000s for his leading role in the High School Musical franchise (2006–2008).
Actors Vanessa Hudgens, Ashley Tisdale, Lucas Grabeel, Corbin Bleu and Monique Coleman all gathered to discuss the Disney TV movie on Sunday for a 10-year anniversary broadcast.
Zac, who famously played the popular basketball player Troy Bolton in the 2005 film, was conspicuously absent.
The film, which also starred Ashley Tisdale, Lucas Grabeel, Corbin Bleu, and Monique Coleman in pivotal roles, became a major success and helped Efron gain recognition among teenage audiences.
The film’s soundtrack was certified quadruple platinum by the RIAA, making it one of the best-selling albums of the year in the United States.
During this time, he also starred in the musical film Hairspray (2007) and the comedy film 17 Again (2009).