Continuity mistake: On the couch, Lois tells Peter that maybe Chris is the one that should be earning that badge. As she does, Peter's arm is down at his side and her hand is resting on it. It then cuts to his reaction and suddenly his arm is out in front of him with no time between shots.
Continuity mistake: Peter walks in from the front door and stands behind the couch where Lois and Brian are seated before he tells them he canceled the party reservation. Between shots, his position behind the couch suddenly changes as does the angle that Lois is looking up at him from. (00:08:05)
Continuity mistake: Peter goes to a save the animals machine at the arcade and at first fails. Inside the machine you can see a yellow bear up against the corner to Peter's right. In the next shot the bear is gone. Several other items inside also change. (00:06:26)
Continuity mistake: In reversed time, we see Cleveland falling back to the inside of his house that had just been wrecked by Peter who launched himself with a cannon into it. The camera zooms in on Cleveland as he falls back to the inside of his house, only for Peter to suddenly be visible along with an additional piece of the roof taken away, after the area in which Peter would appear on and the roof-piece disappear at was off-camera for a few seconds.
Continuity mistake: When Peter comes back into the room after the TV comes on and is wanting to take the family to the folk festival, he stands at the end of the couch with his back to the window. You can see their front door off to the side behind him but not close enough. When it cuts to a different angle, suddenly the door is right behind him, then the window again when it cuts back. (00:17:10)
Continuity mistake: In episode 6, right before Brian's death when Stewie decides to go back inside the house to get his knee pads, he stops right before he enters the house. In this episode, when the same sequence is displayed along with Stewie (from the future) returning to that time, his former self never stops before entering the building. (00:18:40)
Continuity mistake: Throughout the entire intervention scene you can see Brenda's hands. After her boyfriend starts talking he says they are getting married. Brenda holds up her hand to show her ring and suddenly there's a splint on her finger.
Continuity mistake: Dak sits in the back of the snowspeeder and says "Right now, I feel like I could take on the whole empire myself" so Luke gets out. Dak is in back when he flies out but when he is in space he is now sitting in the front.