And Then There Were Fewer - S9-E1
Continuity mistake: When Joe is beside the cabinet with the dishes on it, you see there is no bullet hole in any of the plates. One falls off, Joe picks it up and suddenly there's a bullet hole in it.
Airport '07 - S5-E12
Continuity mistake: In the scene where Peter, Lois, and Brian are at the comedy show, a man sitting behind Peter has a mustache, but in the next shot the man's mustache is gone. (00:01:05)
Audio problem: When Peter is telling the guys about the doctor visit, he starts crying and knocks his beer glass off the table. It makes the sound of glass shattering, but the glass on the floor isn't broken at all.
Revealing mistake: When Brian tells Brooke "I understand", after he thought he was being rejected, his left ear disappears for a single frame.
Revealing mistake: When Peter runs across the dock after getting out of the boat, a large chunk of his body is missing.
Continuity mistake: When Peter is singing, he stops and starts dancing. Mr weed is directly behind him, then in the next shot of other people dancing, he is with them, then in the next shot he is behind Peter again. (00:11:35)
Continuity mistake: When the family goes to Morning Wood Academy, the sign in the front says No Irish and Irish OK underneath that. The next time we see the sign, those words are replaced with the date the academy was founded.
Whistle While Your Wife Works - S5-E5
Other mistake: When the guard is turning the vault handle, the handle doesn't move, but the guard's arms do.
Ocean's Three and a Half - S7-E7
Continuity mistake: Bonnie gives birth to Susie. After she is born, she's completely bald. In the next scene, Bonnie is at Peters' holding her and she has a full head of hair, complete with a bow.
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 was Venice, with the see, the lagoon and the canals.
Continuity mistake: When Brian stops at the Marriott, he orders a Jack on the rocks. As he is ordering it, there is a woman in the background with a martini, then when the camera cuts to behind the counter when Brian receives the Jack on the rocks, the same woman has red wine instead of a martini.
I Am Peter, Hear Me Roar - S2-E8
Revealing mistake: When Brian says "Well face it Peter, your attitude towards women isn't exactly enlightened", Brian's dog tag is the same color as his fur. It also stays still, even while Brian is moving his head. (00:11:10)
And Then There Were Fewer - S9-E1
Continuity mistake: When the guests walk through the secret passage, the order of the guests change between shots. First, it's Peter, then Chris, then Carl, then Doctor Hartman, then Seamus, then Quagmire, then Lois. But in the shot of the passage, the order is Peter, then Chris, then Carl, then Lois, then Consuela, then Doctor Hartman. Then when they reach the secret room, the order is Peter, then Chris, then Carl, then Lois, then Bonnie, then Quagmire, then Derek, then Jillian. (00:20:00)
And Then There Were Fewer - S9-E1
Continuity mistake: As soon as the secret passage opens, the book that caused it to open disappears off the ground almost instantly. (00:19:25)
And Then There Were Fewer - S9-E1
Continuity mistake: Peter knocks out Joe during the search in the hallway. Yet when everyone is fighting about the motives, there is a wide shot of the fight but Joe can be seen fighting behind a couch with Doctor Hartman and Derek. He can't have regained consciousness, because he doesn't regain consciousness until later in the episode. (00:19:20)
And Then There Were Fewer - S9-E1
Continuity mistake: When Carl mentions Labyrinth to Tom Tucker and Diane Simmons, Meg can be seen at the other side of the table sitting in front of Joe. But when we next see Meg a few moments later, Doctor Hartman is now sitting where Joe was. (00:07:25)
Yug Ylimaf - S11-E4
Other mistake: Everything goes backwards in time and goes that far back that Meg (who is voiced by Mila Kunis) goes back to being voiced by Lacey Chabert (who voiced Meg in season 1). However, when Lacey Chabert does her line to Stewie being in the Griffin house for the first time, it goes back to Mila Kunis when Stewie is "reborn". However, if everything was going backwards and Brian fixed everything to make it goes forwards again, then it still should have been Lacey Chabert voicing Meg, not Mila Kunis. (00:16:30 - 00:19:35)
Revealing mistake: At Warsaw Temple, when Mort says "my bargain hunting Aunt Flo", production initials appear next to Brian's tail.
Continuity mistake: On the tour bus, in one shot we see Meg wearing her outfit that she wore when she had her make-over. Then about 10 seconds later you see her in a different outfit altogether.
Continuity mistake: In the scene when Peter tries to get the bullfrog out the window there is a dartboard but when he walks in it wasn't there.
