Continuity mistake: When Troy tells Chad that he wants to catch up on some homework and then heads to the audition, he's wearing jeans with thick decorative white stitching above his right pocket (viewer's left). However, when Troy raises his hand and volunteers to sing with Gabriella, he is wearing different jeans - the decorative stitching above the pocket is gone. (00:25:00 - 00:34:50)Super Grover
Continuity mistake: When Gabriella and Taylor walk through the cafeteria, Sharpay starts walking across the balcony to the stairs, cut to wideshot of the cafeteria and she is back at the center of the balcony with Ryan, motionless, but when it cuts to the next shot she and Ryan are already halfway down the stairs.
Continuity mistake: After Ryan and Sharpay's initial audition, when Ryan tells the girl not to be discouraged because the theater needs fans, the blue janitor's cart is visible in the doorway. When Troy and Gabriella help Kelsi pick up the sheet music, the janitor's cart has vanished from that doorway, but when Ms. Darbus comes back to tell Troy and Gabriella about the call-backs, the janitor's cart has reappeared. (There are two doorways that have green exit signs overhead, at the back wall opposite the stage. Troy leaves the cart at the right doorway.) (00:33:40 - 00:35:40)Super Grover
Continuity mistake: On the first day back after vacation, the exterior of the school is shown at 7:50 AM (wall clock over doors), with the sun's long shadows being cast facing away from the school. The day after Ms. Darbus overheard Troy and Gabriella singing with Kelsi, there is a voice-over of Sharpay screaming, "Callback!" just as the exterior of the school is shown. The clock reads 3:30, and the sun's long shadows are being cast facing towards the school, but we know that it's not even lunchtime yet. (00:07:50 - 00:37:55)Super Grover
Continuity mistake: During the speech which the basketball team gives to Troy, we have shots altering between Troy and Chad. When we see Chad, the two guys behind him are standing basically next to each other. When the scene cuts to Troy, the same two guys are now much farther apart (the right one of the two would be blocked by Troy if they stood as close together as in the previous shot).Christoph Galuschka
Continuity mistake: When Troy tries to ditch Chad to go to the musical audition, he is wearing a belt (as seen when he is going down the school stairs) and white tennis shoes (as seen when he is almost caught by his dad when he rests against the side of the building). However when he makes it to the audition he is now wearing navy blue tennis shoes and no longer wearing a belt (as seen when he "volunteers" to sing with Gabriella). (00:25:15 - 00:35:00)
Continuity mistake: We see a close up of Gabriella slipping in some milk, but in the wide shots there is no milk or carton on the floor. (00:41:30)
Continuity mistake: In the homeroom scene, Ms. Darbus says "Mr. Bolton, I see that your phone was involved so I will see you in detention." and we see a close-up of Troy with both of his hands resting on his cell phone, with one hand ready to close the phone. The camera angle zooms out, and, instead, we see one hand resting on his lap and one hand holding the phone. (00:10:10)
Continuity mistake: When Gabriella is shown Troy on the laptop, dismissing the musical, she begins to cry. She still has wet tear streaks on her face as she looks out the window, but as "When There Was Me and You" begins, her face is dry.
Continuity mistake: When Troy's mom tells Troy to get ready for the party, his dad gives him the basketball. In the next shot his dad is still holding the ball. (00:01:15)
Continuity mistake: The post-callback basketball scene's countdown clock isn't accurate. If you try counting with it, you'll notice that it reaches 0 by the time that the ball's being passed to Troy.
Continuity mistake: When the cheese fries land on Sharpay, they are all standing right beside the staircase (there are three levels of ledge at the base of the staircase), with Jason and others on the ledge by the banister. Then Sharpay screams. Next shot is of Martha standing atop her table, with the staircase and ledges visible behind them, as they all look to the right, as if Sharpay is farther off in the cafeteria. Problem is that Sharpay, Ryan, Jason, and all the others have vanished, though they all should be right beside that staircase behind Martha's table. (00:43:20)Super Grover
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.
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 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.