Continuity mistake: When the "Toothfairy" met the cat for the first time after they fall out of the bed, you see only a piece of block, and 2 shots later there is a skateboard next to it . (00:35:45)
Visible crew/equipment: When Rock is learning to fly, the top of the cyclorama wall is visible and the top of his flying rig harness is very visible with attempts to blur by post production on only some parts.
Other mistake: At the last game when Derek flies out of the rink, the crowd is standing quiet and still from shock at what they've seen. When the camera is panning across the crowd, if you look in the right hand side, towards the top, there is a lady with black hair and a red coat waving her arms and looking straight at the camera (like the extra is trying to be seen by family and friends). (01:20:55)
Deliberate mistake: All Minor Hockey Leagues in North America require players to wear visors with their helmets.