Continuity mistake: When Ted is captive and calls John on his iPhone, in one shot it's the right way up to his ear and then it's suddenly upside down.
Continuity mistake: In the end of the film when Ted comes back to life, Lori comes into the room with her hair behind her shoulders. it switches from behind her shoulders to in front of her shoulders then back again between shots.
Continuity mistake: After John and Lori crash into the rear of Donny's car, the front of their car is visibly smashed in. However, when we see their car later it seems more or less undamaged except for a damaged number plate.
Continuity mistake: In the park scene where three women are taking a picture with Ted you can see a woman in a blue top walking by. Then in the shot of Mark Wahlberg you can see the woman walking past again. (00:30:00)
Continuity mistake: When Ted is falling down, the bad guy pulls him with the left arm. In the next shot the bad guy is grabbing back with his right arm.
Continuity mistake: When Sam Jones punches a hole In Ted's wall then you see the Asian guy, we can see in between shots the hole getting smaller then bigger.
Continuity mistake: One shot John and Lori are drinking champagne, and the next it's normal wine again. (00:25:30 - 00:26:00)
Continuity mistake: At the end, Lori's hands on John's neck keep changing position.
Continuity mistake: When Donny is reaching through the gate and grabs Ted his position changes. Note the gate's position on Donny's chest.
Continuity mistake: After Ted comes back to life and Lori and John are making up, Lori's hands are either clasped together behind John's neck or separated and holding his neck as the shots change.
Continuity mistake: When John is sitting on the couch eating cereal, the box of cereal disappears and then reappears.
Continuity mistake: When John & Lori are lying in bed talking (right before the thunderstorm), when you see John from his right side, his right arm is up and under his head. When you see him from Lori's side (his left), his right arm is down. The camera angles change frequently and his arm keeps switching depending on the angle.
