Revealing mistake: Before Josh tells his mom about Buddy, Buddy starts to push the basketball with nose down the stairs. While he is doing this, you can see the treat put there just before the ball moves.
Air Bud (1997)
1 revealing mistake - chronological order
Directed by: Charles Martin Smith
Starring: Kevin Zegers, Michael Jeter, Wendy Makkena, Bill Cobbs
Revealing mistake: Before Josh tells his mom about Buddy, Buddy starts to push the basketball with nose down the stairs. While he is doing this, you can see the treat put there just before the ball moves.
Referee #1: Does he dribble?
Arthur Chaney: No, but he might drool a little bit.