Continuity mistake: When Joe eats ice-cream on a mini batting helmet during the football match, some ice-cream is visible fallen on the ground just before the drink seller comes. In the next shot it disappears. (00:02:40 - 00:03:01)
Factual error: While Trump is showing Peter around the White House, Trump stops and says, "Sorry, can you hang on a sec, gotta close this window, Melania's out there blowing bubbles for Eric." It's a fact that windows are not allowed to be opened in the White House for security sake. Michelle Obama was unaware at first and opened one and the secret service ordered her to shut that window immediately.
Answer: Mort is Jewish, and Walt Disney was said to be antisemitic. So it would make sense in a Disney universe all the inhabitants would share his supposed beliefs.
MasterOfAll