Continuity mistake: The window frame is broken in different points throughout the episode. For instance, when Dio pops open the head of the constable, he lands on the frame completely devoid of any sharp part, while a moment before it had two wooden pieces sticking out.
JoJo's Bizarre Adventure (2012)
1 continuity mistake in Dio to no seishun - chronological order
Starring: Matthew Mercer, Daisuke Ono, David Vincent
Continuity mistake: Dio challenges some hoodlum at the game that men of dubious virtue would play in the London slums at the turn of the century; chess. He reaches over to grab the coins the guy tossed at him, but when the sore loser smashes his face in the grub, the dish is suddenly directly in front of him and the chessboard disappeared. (00:03:10)
Dio Brando: Kono Dio da... It is I, Dio.
Trivia: Dio in this episode drinks Cronenberg Whisky, just like in the manga. The fictional brand is most likely a homage to the director David Cronenberg, especially given the bit of 'body horror' appearing in this arc.