Continuity mistake: At the subway when Mercy and Fox were running down the stairs from the cops, they showed a back shot of Mercy and it was clearly another woman. Her hair was about shoulder length and straight. Mercy's hair is longer, and curly.
Factual error: In the scene where the Warriors are hiding from the Turnbull A.C.'s under the elevated subway they look up at the train that is approaching the station. The train is marked as a "J" train. At that point they are still in the Bronx. The "J" train never runs in the Bronx.
Revealing mistake: As the gang is being chased through the "96th Street Station", you can see the true station name "Hoyt" (as in Hoyt-Schermerhorn Sts. Station) on the outer station wall. (00:42:50)
Continuity mistake: When Vermin says to the woman,"Looks like you're the winner." they both sit down and start to kiss, but in the next shot when Rembrandt and Cochese start talking, you can clearly see Vermin walking by talking to the woman.
Audio problem: In the famous "beer bottle" scene where the gang leader of the Rogues Luther has three beer bottles on his fingers, if you listen very carefully you can hear the director shout to the actor David Patrick Kelly "David, action" just before Luther starts to sing "Warriors, come out to play." (01:20:49)
Continuity mistake: When Cyrus is giving his speech his shirt and robe are quite open (open enough to see a necklace), but when he's shot his clothes have buttoned themselves. (00:12:00)
Deliberate mistake: In the scene where the Punks follow the Warriors into the bathroom, Rembrandt sprays the head punk with his red spray paint. However, the spray coming out of the can is clear, not red.
Continuity mistake: When the Warriors are back home and they step off the train, the woman who is with Swan has a pink top on and it is really dirty on the front, but when they go and find some weapons in the abandoned warehouse she has only got a small mark on the front the size of a hand, as she did earlier on in the film.
Continuity mistake: In the subway station, when the Turnbull A.C.'s recognize the Warriors, they turn the bus around and begin a fierce chase. The distance shots of them chasing the Warriors do not match up. Several times the AC's appear to gain on the Warriors, and a few other times the Warriors are way ahead of the AC's just prior to escaping up the subway stairs.
Continuity mistake: At the end of the movie when The Warriors are back home in Coney Island and ready to confront the gang that set them up, you can see the rides, boardwalk, surrounding apartments in the background. However when they take the gang down to the beach all of the background scenery that definitely would still be visible disappears. There is no way they are still on the beach in Coney Island.
Continuity mistake: In the opening scene where the Warriors are talking amongst themselves, the shot shows Ajax say to what is presumably Vermin (due to the curly hair, necklace and the fact he's taller than Ajax) "Maybe we'll get to waste a few heads along the way." The shot then flips to show Cleon, not Vermin, who responds "You just soldier and keep your mouth shut." The shot once again flips to show Ajax and the back of Vermin's head. (00:05:30)
Continuity mistake: The girl with the Warriors started the film with red high heels that had a single strap over her toes, but when we see her feet on the subway and for the rest of the film, her shoes are black with a split strap.
Visible crew/equipment: When the leader of the Riffs' finds out it wasn't the Warriors who killed Cyrus there is a focused shot on his face and his sunglasses reflect a crewmember wearing a white T-shirt next to what looks like a camera. It has to be a crewmember as no-one in that scene is wearing a white T-shirt. (01:14:02)