Continuity mistake: At the end of the movie when Tackleberry glides down the balloon you can see that the color/shape of the balloon changes between the closeup and far off shots.
Revealing mistake: In the scene near the end, when the two cops are fighting in the "out of control" bi-plane, the plane is seen looping and twisting as the "pilot" Tack has jumped out. However, in the side-on view of them fighting you can see a new pilot trying desperately to stay out of shot, but failing due to the g-forces he is under while the plane moves around. (01:16:00)
Revealing mistake: While fighting against a ninja on the ship, Nogata does a back flip and then a front flip. He is replaced by a caucasian stuntman with no Asian features.
Revealing mistake: When Mrs. Feldman drives the motorbike inside the store to save Tack, the male stuntman is very noticeable.