Other mistake: Clarence tells George that his brother died at the age of 9 because he wasn't there to save him from falling through the ice, but when you see the tomb stone, it shows Harry Bailey was born in 1911 and died in 1919. That would make Harry only 7 or 8 years old.
Other mistake: Marlowe fires several shots at Art Huck and Lash Canino but if you look at the chamber when he takes the gun out from under the dashboard, there are no bullets in it. (01:41:45)
Other mistake: At the start of the baseball game, the announcer says that the Gas House Gorillas are the visiting team, yet on the scoreboard they are shown above the Tea Totallers.
Other mistake: In the "Peter and The Wolf" segment, Sasha the bird has a flesh-colored head. When he puts on his black cossack hat, the flesh areas of his cheeks and the flesh area between his eyes instantly turn black.