High School Musical is an Emmy Award-winning American television film, and the first in the High School Musical film franchise. Upon its release on January 20, 2006, it became the most successful movie that 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 released to theaters in October 2008. It is 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. The film's soundtrack was the best-selling album in the United States for 2006.

High School Musical was Disney Channel's most watched movie that year 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. On December 29, 2006, it became the first Disney Channel Original Movie to be broadcast on the BBC.

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 to the status quo".

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

Plot

East High School's basketball star Troy Bolton (Zac Efron) and math-whiz Gabriella Montez (Vanessa Hudgens) meet at a New Year's Eve party at a ski lodge over Christmas Break. Here, they take part in a karaoke contest and sing ("Start Of Something New"). They discover they have a great chemistry between them and end up exchanging numbers.

After homeroom, Troy and Gabriella see each other again and as they start talking near the sign-up sheet for the winter musical auditions, Sharpay sees them and assumes that Gabriella is interested in signing up. With Ryan's help, Sharpay determines that Gabriella is an "Einsteinette", and puts an article of her previous academic achievements into Taylor's locker.