Continuity mistake: In the flashbacks to 1984, Peter and Lois are both 18, but in a previous episode, Lois says that she's two years younger than Peter.
Airport '07 - S5-E12
Continuity mistake: When they are on the Redneck Tour, when we first see Peter talking, the man behind him has a mustache. As the camera zooms in closer to Peter, the man is suddenly clean shaven. There are several other changes with people behind the Griffins, between shots. (00:00:55)
Continuity mistake: When Peter goes back in time the first time, we see him and Cleveland slapping hands around the pool, we see that the pool is significantly shorter than in the scene where we first see Lois.
Barely Legal - S5-E8
Continuity mistake: When Meg is introducing Brian to Meg's friends, they are at the mall sitting at a table with trays on it. There's a close-up on one of Meg's friends, and the trays and food are gone. (00:12:40)
Chick Cancer - S5-E7
Continuity mistake: Just before Peter announces his decision to make a chick flick, the tissues on his lap change position.
Airport '07 - S5-E12
Continuity mistake: When Peter unplugs the plane's fuel hose, he spills fuel near the stairs, but when the two airport workers come over, the spilled fuel is gone. (00:05:05)
Airport '07 - S5-E12
Continuity mistake: When we first see Peter lounging on the front lawn with his feet in the baby pool, there is water that has spilled out of the pool onto the lawn, but in the next shot, the spilled water is gone. (00:02:15)
Continuity mistake: At the start of Peter's fight with the Big Chicken, Peter is slammed into the wall, which cracks. After Peter gets up, the wall behind him is perfectly fine again. (00:07:05)
Airport '07 - S5-E12
Continuity mistake: When Peter is backing up and sees the airplane fuel there is a tank near the ladder and the hose is hooked up to it but when Peter walks up to it to plug it into the truck the tanker is way farther away. (00:05:00)
Airport '07 - S5-E12
Continuity mistake: When Peter and his friends are at the bar after the plane has crashed, Quagmire's mug changes position between shots. (00:08:25)
The Tan Aquatic with Steve Zissou - S5-E11
Continuity mistake: At the very beginning of the episode, when we first see Peter and co. at the golfcourse, Peter and Quagmire get a lot closer between shots. (00:00:30)
The Tan Aquatic with Steve Zissou - S5-E11
Continuity mistake: When Kyle shows up to bother Chris outside Herbert's house, Chris and Kyle change position between shots. (00:05:40)
Barely Legal - S5-E8
Continuity mistake: When Peter, Quagmire and Cleveland become cops because Joe trains them and they are all at Peter's, Joe has binoculars and is looking across the street and saying he is watching his wife Bonnie in her house. In just about every episode it is stated that Joe and Bonnie's house is right next to Peter's. So why is he looking across the street when their house is next to Peter's? (00:17:50)
Continuity mistake: Stewie and Brian shoot themselves in the foot. Next shot the holes have disappeared. (00:18:50)
Airport '07 - S5-E12
Continuity mistake: When Chris is sitting on the floor because Peter has taken the couch outside, his position in relation to the rug changes. (00:02:10)
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.
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)
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)
Continuity mistake: When Peter is hiding in the bedroom, the colour of the books by the TV change between shots. Most noticeable is 2 blue books become 1. (00:06:00)
