Continuity mistake: When Brian and Stewie arrive in Leonardo's atelier, we know that they are in Florence for two reasons: because of history and because we see Palazzo Vecchio (which is in Piazza della Signoria, in Florence) outside the window. Then, when Stewie and Bertram are fighting with Leonardo's flying machine, the city of Florence is wrongly represented as if it were Venice, with the sea, the lagoon, and the canals.
Continuity mistake: In the episode "FOX-y Lady" (7-10) it was established that Quagmire was 61 years old. In this episode, Quagmire stated to Meg he was bullied in 1986 and a flashback shows that he was a teenager. So how could Quagmire have been bullied in 1986 as a teenager if he should have been in his 30's at this time? (00:12:15)
Yug Ylimaf - S11-E4
Continuity mistake: When Stewie is born whilst time is reverting, Doctor Hartman says "It's a girl... with a penis and no vagina". Then after Brian restored the flow of time and Stewie is actually born, Doctor Hartman instead says "It's a boy". (00:18:25 - 00:19:55)
And Then There Were Fewer - S9-E1
Continuity mistake: When Mayor West panics, Peter shakes him and he falls against a shelf. The plate on the end of the shelf falls off and smashes on the floor. But when Brian points out the gun is there, it is now the middle plate that fell off and the plate on the end of the shelf is intact. (00:15:25)
And Then There Were Fewer - S9-E1
Continuity mistake: Just after Stephanie is killed, there is an outside shot of the manor, where the weather is normal. Just 20 seconds later when they run outside to try and escape, it is suddenly pouring down. (00:10:40)
And Then There Were Fewer - S9-E1
Continuity mistake: There are several differences during the flashbacks and what actually happened. Such as when Muriel is killed Diane appears with everyone else, but in the flashback she appeared moments later. Second, when everyone appears in front of Derek's dead body there are two differences, Tom doesn't say "Dear God!" in the flashback and Diane appears 1 second later in the flashback. Third, Stephanie doesn't say "Did the cork hit me?" when she is shot in the flashback. Fourth, Priscilla isn't wearing a scarf in the flashback even though when it actually happened she was wearing a scarf. Fifth, when Derek says he is going up to the roof he is standing next to Peter and Lois, in the flashback he standing next to Lois and Jillian. Sixth, when Derek leaves the dining room to go to the balcony, no-one is standing next to the door, but in the flashback Diane and Doctor Hartman are standing right next too the door. Seven, when Muriel is killed she is in the middle of a hallway. But in the flashback, she is killed outside Tom Tucker's room.
Continuity mistake: As Lois pats Brian, her elbow changes position. (00:16:45)
Continuity mistake: When OJ Simpson first meets Peter for their game of golf, both Peter and OJ have only four irons and a putter in their golf bags; however, when OJ tees off, he does so with a wood.
Continuity mistake: The bullet holes in Lois keep changing place between shots. This also happens during the flashback in the courtroom.
Continuity mistake: When Bertram sneaks into Stewie's bedroom, he tiptoes past Stewie, who is sleeping. But in the next close-up of Bertram, the shot pulls back and pans the room so we see Stewie's crib is empty. But in the next shot, Stewie is still sleeping, and then he wakes up. (00:10:25)
The Tan Aquatic with Steve Zissou - S5-E11
Continuity mistake: When Peter attacks Kyle, his shirt is clear of blood. However, when the shot changes to an overhead one, blood has suddenly appeared on his shirt. (00:09:50)
The Courtship of Stewie's Father - S4-E16
Continuity mistake: After Peter and Stewie's Jungle Cruise ride, when Michael Eisner walks up to the duo, Eisner's suit buttons are on his left, but then the buttons switch to the opposite side, and his tie's stripes change direction as well. (00:19:50)
The Courtship of Stewie's Father - S4-E16
Continuity mistake: When Peter takes the garden hose upstairs, the bathroom doorknob is on the right side. As Peter kicks in the door, but from inside the bathroom, the doorknob is on the opposite side of the door, so it swings open the opposite way. (00:10:25)
The Courtship of Stewie's Father - S4-E16
Continuity mistake: After Peter's mess of glee club, in the first shot of Obi-Wan the right side of his robe is over his left side, but next shot it's the opposite way with the left side over the right. (00:02:15)
Brian Goes Back to College - S4-E15
Continuity mistake: After painting the stripe on the van, the side passenger door handle vanishes when Peter/Hannibal gets into the front seat; then, that handle reappears when Quagmire/Face enters the van. (00:09:10)
Brian Goes Back to College - S4-E15
Continuity mistake: When Brian is escorted into the New Yorker's writers' lounge, the door has a knob and backplate, but the backplate vanishes in a following shot. (00:03:15)
Brian Goes Back to College - S4-E15
Continuity mistake: After the opening credits, Peter/Hannibal is wearing a jacket with pockets only on his right side; then pockets suddenly appear on his left side between shots. (00:00:40)
Continuity mistake: When Bertram climbs through the window into Stewie's bedroom, just as he tiptoes past a sleeping Stewie, the lightswitch on the wall is in the up position and the room is dark, but two shots later Stewie wakes up and now the lightswitch is in the down position so Stewie flips it up, then the light turns on. (00:10:20)
Chick Cancer - S5-E7
Continuity mistake: When we see the banner saying "Happy Birthday Quinn!", the I is next to the U. However, in the close-up there is a sizeable gap between them. (00:12:50)
Continuity mistake: When Joe and all the handicapped meet in front of Peter's restaurant, Joe is by some white lines in one shot and not in the next. (00:16:30)
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