Continuity mistake: At the start of "Stick to the Status Quo", when Zeke is singing, the nylon lunch bag opens and closes itself repeatedly, the brown paper bag is either upright or lying on the table, as well as other changes on the table that occur between shots. (00:39:30)
Continuity mistake: When everyone is in home room and they are getting their phones taken away, Troy is shutting his phone in a close up, and then when they show the whole class, his phone is open again.
Continuity mistake: Troy and other members of the basketball team say that the big basketball game is in 2 weeks, and the scholastic decathlon members say that their championship is in 1 week, but near the end of the movie their championships are on the same day. We know Sharpay couldn't have changed it because all she asked to be changed was the call back date.
Continuity mistake: In the song 'Breaking Free,' Troy's microphone constantly jumps from one hand to the other as the shot changes but too quickly for it to be because he moved it.
Continuity mistake: When Sharpay gets french fries dumped on her shirt, her white under shirt has nacho cheese all over it. But in the next scene when she talks to Zeke, her under shirt is clean again.
Continuity mistake: Troy is running down the stairs to get to the audition, his boxers are blue. However when he says " I'll sing with her", his boxers are now white.
Continuity mistake: Near the end, at the end of "Breaking Free" , Gabriella has the mic in one hand, but in the next shot it's in the other hand.
Visible crew/equipment: At the final callbacks, when Ms. Darbus calls Sharpay and Ryan onstage, the reflector screen is seen in her glasses.
Continuity mistake: Just as Miss Darbus walks onto the stage to announce the auditions have begun, Troy quickly hides behind the curtain. However, when they cut to a farther back view, the curtains aren't moving.
Continuity mistake: In the scene at the beginning when Troy and Gabriella sing "Start Of Something New", Troy takes the mic off the stand. Moments later, at a different angle the mic is back on, then off, then back on.
Factual error: The movie takes place in Albuquerque, New Mexico, but the mountains seen in the background throughout the movie are the Wasatch Mountains which are near Salt Lake City, Utah.
Character mistake: When the coach is eating a sandwich in the locker room, there is a headline in the paper he's reading that says, "Diamond Backs rattle Timber Wolfs..." Diamondback is one word and the plural of wolf is wolves. (00:45:00)
Other mistake: On the clock that shows 12:05 (just before the basketball team and the science club start their coup) the second hand isn't moving.
Factual error: It is New Year's Eve in the opening scene. It then cuts one week later to school in Albuquerque, and there is fresh green grass, and green leafed trees, etc. But it is only the start of January.
Continuity mistake: In the locker room, the coach's sandwich goes from his hand to the desk to his hand and switches hands a few times in this scene. It also appears to get bigger and smaller a few times.
Audio problem: After "Get'cha Head in the Game", Troy shoots one final basketball. When it bounces on the ground, the sound is slightly delayed.
Audio problem: During "Breaking Free" (near the end), the audio has both Gabriella and Troy singing the line "You know the world can see us," but Gabriella's mouth does not move until the word "can." (01:29:25)
Answer: I'm not positive, but that is what I've always assumed.