“High School Musical" was just the working title for the film while a better name was thought up. However, by the time post-production came, a better name had not been thought of so the producers unwillingly went for "High School Musical”.
In Corbin Bleu's first appearance in High School Musical, he was wearing three different watches. He was given a choice of which one he wanted to wear, so he chose all three of them. Each was set to different time zones.
Do you remember in kindergarten, when you’d meet a kid and know nothing about them, and then ten seconds later, you were playing like you were best friends, because you didn’t have to be anything but yourself? Singing with you felt like that.
Chad: Look, you’re a hoops dude. Not a musical singer person. Have you ever seen Michael Crawford on a cereal box?
Troy Bolton: Who’s Michael Crawford?
Chad: Exactly my point. He was the “Phantom of the Opera” on Broadway. Now my mom, she’s seen that musical 27 times and she put Michael Crawford’s picture in our refrigerator. Not on it. IN it. So my point is, if you play basketball, you’ll end up on the cereal box. If you sing in musicals, you’ll end up in my mom’s refrigerator.
Troy Bolton: Why would she put his picture in your refrigerator?
Chad: I don’t know, one of her crazy diet ideas. Look, I don’t attempt to understand the female mind, Troy.