Continuity mistake: As Max is carrying a birthday cake out of the kitchen, the candle blows out as he walks. But the candle is suddenly lit again when the camera angle changes, as he walks into the living room.
Character mistake: In the scene where the Panthers are being introduced, the announcer states that one boy is "Walter 'The Hook' Coster", and another is "Frank 'The Razor' Schmidt". But in another scene, when one of them is batting, he says Frank Coster. Although they look exactly the same, he accidentally mixed the two names together. There is no Frank Coster. (01:12:50 - 01:19:15)
Continuity mistake: In the first film, "National Velvet," the Pie, Velvet Brown's horse that ran in the Grand National, was a gelding (neutered). In the sequel, the Pie has somehow become a stallion again and sires a colt many years later that Velvet's niece names Arizona Pie.