Continuity: As Jack Kelly rides the horse near the end of the "Santa Fe" sequence, his hat is waving behind him. When it cuts to a different angle the hat is on his head. Note: This was a specific detail put in by the director, symbolizing the boy's mental transition from New York to Santa Fe. However, it failed and is commonly seen as an editing mistake.

Other: When Pulitzer is reading the headline "Trolley Strike Drags on for Third Week" out loud he uses the magnifying glass to read, but reads faster than he is dragging it.

Factual error: During the big Newsies rally when Medda is singing "High Times", as she is swinging, lighted exit signs can be seen. I don't believe that those were around in 1899.

Factual error: When Jack Kelly and David go to see Spot, Spot is wearing a jacket with his sleeves rolled up. When he shakes Jack Kelly's hand, you can see the tan line from his watch.

Revealing: In the scene where Sarah (David's sister) punches one of the Delaney brothers after being harrassed in the alley, she draws back to throw a punch. She first bangs her hand on the brick wall then, after she throws the punch, she punches the other brick wall extremely hard. You can see her bend over whencing in pain and grabbing her hand right before they switch camera views. When they switch camera angles, she's no longer crouched over and she's obviously had time to recover.