Continuity mistake: When Auggie and Jack are running from the bullies Jack gets closer to one of the trees between shots.
Visible crew/equipment: After Amos, Jack, and Auggie run from the 8th graders, watch when Amos says "They were huge!" As he says it, he puts his arms up in the air, and you can see a microphone cord.
Continuity mistake: When Amos, Henry, and Miles are fighting off the bullies Amos is hanging one of them over his shoulders. In the next shot Auggie is grabbing at the bullies' legs which are suddenly on the ground.
Revealing mistake: When Auggie is bringing the popcorn to Jack Will he is holding the popcorn at an angle that it should fall out but it doesn't, revealing that was just a prop.
Suggested correction: When Auggie sits down next to Jack, you see a piece of popcorn fly out the pot meaning it isn't a prop.
Revealing mistake: When Jack punches Julian, take a close look at how far away Jack is from Julian. He is about 3 and a half lockers away from him. There is no way his arm could've reached Julian.
Revealing mistake: After the New Years Countdown ends, Isabel's computer says that it is April and not January 1st. The time is also 10:00 instead of 12:00 or 0:00.