Plot hole: In the Cowboys' last possession of the final game, Spike makes a long run before being stopped on the goal line. The Cowboys' next play is a run up the middle. The Little Giants stop the run and the Cowboys lose possession, but since that was the first possession of a new set of downs, the Cowboys would have three more chances to score.
Continuity mistake: When Spike first joins the little giants team they start practising a power eye formation. On the first play Spike trips and fumbles the ball. He doesn't have it in his hands when he hits the ground, but when he gets up he does.
Continuity mistake: After Becky knocks Sean Murphy into the pond with the go-kart, he comes out of the water and his hair is all messed up. Throughout the rest of that scene, his hair keeps changing.
Continuity mistake: When the Cowboys are at they're final play Spike has the ball and he runs back and forth up the line and then he dives for the endzone, but Becky tackles him and he falls short. When he lands he is on his back, but when the ref. checks to see where the ball is, Spike is lying on it and has his stomach to the ground.
Continuity mistake: At the end, the giants fumble the ball and it rolls slowly to the endzone but in the next scene, it is moving rapidly in the endzone.
Continuity mistake: When the dad that is never there walks into the stadium and his boy recognised him he is only a few inches from the field but when his son is running towards him he is at least a few feet.
Continuity mistake: When the Giants are washing cars, the guy from the other team drives his car to the site. When he comes in the window on the driver's door is down, when they start to spray water on him the window is up and when he drives away it is down again.
Continuity mistake: When Becky is starting to stir the chocolate milk at the table when her dad is talking to her about not making the team, her right hand is on the spoon in the glass stirring. When her dad sits down and says "Hey, Beck", the camera cuts to a behind shot of Becky at the table and her hand is off the spoon and now on the table. Then when the camera cuts to another shot, Becky has her hand back on the spoon and eventually she removes it.