Character mistake: In the beginning of the film, Oliver has been brought by Mr. and Mrs. Bumble to the Governor's door after asking for more to eat. Mrs. Bumble then sings, "They'll lay the blame on the one who named him," and as Mr. Bumble is responding, "O-li-ver", look at Oliver. He is completely spacing out and not in character at all - staring off into the distance and flicking his tongue in and out of his mouth.
Suggested correction: The character is in character, he is acting alarmed and concerned and regretting his choice to inform the governor. As seen https://youtu.be/nlJugdk4OGc.
Trivia: Mark Lester, who had the lead role as Oliver, was tone deaf and could not sing, so he was dubbed by the music supervisor's daughter.
Suggested correction: This isn't correct unfortunately. It was actually the voice of child singer Roger Bowman. For further details go to https://www.funtrivia.com/askft/Question42755.html.
Continuity mistake: Just watched the film Oliver, with the scene in the undertakers when Oliver is put in the coffin he is facing right but when the coffin lid is opened again, he is somehow facing the other way round. (00:25:00)