Plot hole: Just after Snyder escapes the FBI sting, he is yelling at Brown about the FBI cop being Sam Douglas. If Snyder knew the guy standing outside the car is his former partner's son-in-law, why did he continue with the business transaction as though he had never before seen and/or met Sam Douglas?
3 Ninjas (1992)
1 plot hole
Directed by: Jon Turteltaub
Starring: Victor Wong, Max Elliott Slade, Chad Power, Michael Treanor
Revealing mistake: There is an obvious stunt double for Grandpa during the fight scenes.
Fester: Hey dude, what time does school get out?
Hammer: I don't know. I never stayed to the end.