Continuity mistake: When Meg, as X-Men's Quicksilver, starts to spite her whole family at the speed of light at the beginning of the episode - just after Chris sneezed in front of everybody - she initially throws his hat away from him, but in the next shot when she gets back on her seat, Chris' hat returns resting to his head.
Continuity mistake: After the Robert Redford clip, when it cuts to the Griffins walking toward Doug's house, in this exterior shot (and a previous exterior shot) the front door is located between one window and the garage, but in the following interior shots there's a window on both the left and right side of the front door. (00:14:20)
Continuity mistake: After the LASIK surgery Lois has bandages covering her eyes, and the pairs of crisscrossed tape switch their over-under positions within the same shot.
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