Deliberate mistake: When David brings Jack home to meet the family and at the beginning of Santa Fe number.It starts raining buckets during dinner and the cake scene, but less than a minute passes and it is dry enough to sit down on the stairs at the beginning of the Santa Fe number. Then during the song "Santa Fe" and later in the dance sequence, the ground is dry as Jack is kicking up dust.
Continuity mistake: Right after Jack and David get back from Brooklyn, the newsies are standing around a statue listening to Jack tell them the results of the visit to Spot. Racetrack is smoking a cigarette. He says, "Maybe we should hold off for a while" (or something to that effect), and then puts the cigarette to his mouth. The shot changes angles and Racetrack's hand is down by his side. There's no way he could have moved that quickly.
Continuity mistake: In the opening Song "Carrying the Banner" Jack is talking to Mush and turns away from him as he is trying to button his pants, his shirt is tucked in as well. After he lathers his face and throws shaving cream at Mush he starts to sing and if you look, his pants appears buttoned and his shirt is hanging out.
Continuity mistake: During "Seize the day Number' there are 2 boys on the statue, mere seconds later there are four boys and we see one get down, but in the next shot there are 5 boys on the statue.
Other mistake: In the scene when the nuns are giving the Newsies food when Kid Blink sings "Something to wake me up", one of the kids behind him is mouthing out the words.
Other mistake: In the song "King of New York", Mush is down on the floor singing 'a star for one whole minute' but in the next shot we see him tap dancing on the table.
Continuity mistake: During "Seize the Day" Mush is wiping off with a white towel, and then when he starts to sing, he reaches for the towel again. There is no other towel visible for him to be reaching for.
Continuity mistake: At 22:50 a guy is waving a sign that says: "Trolley strike unfair to workers" in front of the Magazine store and behind the boys. At 22:57, on a wide angle, he is gone.
Continuity mistake: Towards the end of the movie when the newsies are standing by the large statue and all of the other children start coming, there is a shot of all the newsies together and you can see Spot in the background. In the shot right after, Spot is shown leading the Brooklyn newsies.
Continuity mistake: The Delancy brothers are chasing jack (at the rally) with Morris the closest to him. As he reachs up to grab Jack, to keep him from jumping, the camera cuts to his feet and his hands are missing, as he jumps to safety.
Continuity mistake: The Soaking scene. The wagon is covered. All of a sudden the wagon is bare (top) as the Boys tip it over which spills all of the papers. Then after the kids at racetrack are throwing bundles off of the wagon, the wagon is covered again and upright, while seconds later it is back on it's side.
Factual error: In "Santa Fe," Jack sings the line "Far from the lousy headlines and the deadlines in between." The word "deadline" was not used in this sense until the 1920s (the movie is set in 1899).
Revealing mistake: In the opening scene, when Jack is woken by the landlord, he slips into his natural British accent when he yells at the landlord and calls him "mad."
Other mistake: The newspaper headline on the first day of the strike (the day Crutchy was arrested) is the same headline on the last day of the strike.
Answer: During the "Two for a Penny" sequence in Carrying the Banner, you can see Crutchy dancing in one of the back rows on the right without his crutch. You can also see him walking without it behind David during the first Sieze the Day when David sings "Arise and seize the day!"