1. The title High School Musical was initially just a placeholder as Disney and the filmmakers had not yet decided on a name.
2. Hunter Parrish and Sterling Knight both auditioned for the role of Troy Bolton, losing out, of course, to Zac, who they would go on to star alongside with in 17 Again, as his high school nemesis/daughter’s lose boyfriend and his son, respectively.
3. Corbin, meanwhile, first auditioned for Ryan Evans, telling Buzzfeed, “At the time, I didn’t know about the role of Chad Danforth.” Once he landed the role, Corbin would go on to come up with all of the catchphrases on Chad’s signature graphic t-shirts. “They’re in a box in my garage,” Corbin revealed of Chad’s collection.