In the canteen Miley is wiping tomato ketchup off her hand, when Lilly puts her bracelet on her wrist there is no ketchup. However, when the camera appears back on her hand there is tomato ketchup again.
You see Miley talking to a boy and she's putting ketchup all over her hands. After talking you see her wiping her hands and then they're clean. In the next shot the ketchup is back. And in the next shot the ketchup is on. But in the final part the ketchup is gone and the scene continues.
After Miley has accidentally squirted ketchup all over her hand, she picks up her lunch tray. Between shots during the scene, the juice box on her tray continually changes from laying down to standing upright.
After Oliver yells "you have an extra ticket to Hannah Montana!?" in the food court, the food on the lunch trays in front of them completely change between the shots of everyone charging over to their table.
In one shot you can see Miley's dad holding the french fry he picked out of her hair, in the next shot he doesn't have it, then in the next shot he does have it, but it is in his other hand, as Jackson walks up to him.
In the beginning of the scene where Hannah is autographing the girl's face you can see that she has already finished writing her whole name on her forehead, but as the scene starts she pretends to sign the fan's face again.
In the opening scene, the TV reporter calls Hannah Montana "14 year old sensation". However, Hannah Montana is only 13.