Continuity mistake: After Lois says that Stewie is the 'president of poopy' she and Tricia change position in relation to the couch. (00:09:30)
Factual error: Peter is posing as a blow up sex doll. The tester picks him up like he doesn't weigh anything. Not possible.
Continuity mistake: Peter falls from the roof of the Clam landing on Joan Cusack. He puts her body in a mailbox that appears just for this scene.
Road to the Multiverse - S8-E1
Other mistake: In every universe - except for the double-headed universe - Brian and Stewie travel to, they (seem to) replace the version of themselves that universe already has of them, but then in the Dog universe they have a separate version of themselves that they continuously interact with.
Ocean's Three and a Half - S7-E7
Factual error: Bonnie changes Susie and Joes diaper. There's no way Joe wears the same size diaper as Susie.
Boys Do Cry - S5-E15
Other mistake: Towards the very end, they automatically head to the car, planning to leave Texas, without any of their items from the house packed in the car after running away from the mob at the Miss Pageant Contest.
A Picture Is Worth 1,000 Bucks - S2-E11
Other mistake: Brian says he met Antonio Monatti when he was with Andy Warhol in the '70s. This is an impossibility. Only several episodes earlier (in episode Brian in Love), we find out that Brian is 7 years old.
Continuity mistake: When Peter winks at the camera wearing an afro, it is black, but when he sits back down, the afro is brown.
Something, Something, Something, Dark Side - S8-E20
Continuity mistake: When Han lands the Millennium Falcon in the "handicapped" crater on the asteroid, the handicapped parking logo disappears from the ground. (00:22:45)
Continuity mistake: All the army men including Brian and Stewie have USA symbols on their arms, but when Stewie and Brian talk to one of them, after they shoot each other in the foot, the USA symbol on the man's sleeve is orange lines and a arrow.
Blue Harvest - S6-E1
Other mistake: In the scene where the Millennium Falcon has just left the death star after Obi-Wan has been killed, there are two shots of the ship flying away through space. In the second shot, the cockpit is missing. (00:33:35)
Airport '07 - S5-E12
Other mistake: As Quagmire sits at the bar, Hugh Hefner comes and gives him a pep talk. During it, he says John Holmes said Glen Quagmire is the best pilot. Unless he had seen the news or knew him personally, Hefner couldn't have called Quagmire by name.
And Then There Were Fewer - S9-E1
Continuity mistake: When Diane Simmons tells Lois that she is the murderer, Quagmire has already left the manor with Stephanie's body in the boot. When Diane is walking Lois outside, Quagmire is seen again even though he just left. This has been cut from the DVD. (00:45:40 - 00:46:50)
Ocean's Three and a Half - S7-E7
Continuity mistake: After Cleveland cuts open the safe door using Reese Witherspoons's chin, the door falls straight down inside the safe. After Cleveland, Quagmire and Peter step inside, you see that the safe door has mysteriously moved more to the left.
Continuity mistake: Peter gets beat up and thrown in to a black limousine by hired thugs of Mr. Pewterschmidt. While in the car, notice that as Peter starts talking to Mr. Pewterschmidt that there is no cart of Diet Rites next to him. Next shot there is. Then the cart disappears as Mr. Pewterschmidt tells Peter what is on his mind.
