High School Musical is an Emmy Award-winning American television film. Upon its release on January 20, 2006, it became the most successful Disney Channel Original Movie (DCOM) ever produced, with a television sequel High School Musical 2 released in 2007 and the feature film High School Musical 3: Senior Year to be released theatrically in October 2008. It will be the first Disney Channel Original movie to have a theatrical sequel. A fourth installment, High School Musical 4, has been announced to be in the writing stages.

High School Musical was Disney Channel's most watched movie at its time, with 7.7 million viewers in its premiere broadcast in the US. In the UK, it received 789,000 viewers for its premiere (and 1.2 million viewers overall during the first week), making it the second most watched program for the Disney Channel (UK) of 2006. It was also the first ever Disney Channel Original Movie to be broadcast on the BBC on December 29, 2006. The film's soundtrack was the best-selling album in the United States for 2006.

With a plot described by the author and numerous critics as a modern adaptation of Romeo & Juliet, High School Musical is a story about two high school juniors from rival cliques – Troy Bolton (Zac Efron), captain of the basketball team, and Gabriella Montez (Vanessa Hudgens), a beautiful and shy transfer student who excels in math and science. Together, they try out for the lead parts in their high school musical, and as a result, divide the school. Despite other students' attempts to thwart their dreams, Troy and Gabriella resist peer pressure and rivalry, inspiring others along the way not to "stick with the status quo."

High School Musical was filmed at East High School located in Salt Lake City, Utah, the auditorium of Murray High School, & Downtown Salt Lake City. Murray High School was also the set of: Take Down (1978), Read It and Weep (2006), Minutemen (2008) and High School Musical: Get in the Picture (2008).