After Sully and Peter break into Tip Top Construction and drive off with the snowblower, they stop by the house on Bowdin Street and talk about the place through the rain streaked windshield, yet the snowblower is nowhere to be seen in the back of the truck.
When Sully pulls up to his old home at night alone and stares at the house in his headlights, it isn't snowing as it was when he pulled in, and as he leaves it is snowing again but going up in the sky - it is the arrival clip in reverse
After Officer Raymer is punched in the face by Sully, he collapses to the ground against his car with his head in front of the Police seal on the door. When the camera pulls back, Raymer's head and body are positioned a good two feet to the left of the Police seal.
When Sully and Peter are stealing the snowblower from the Tip Top construction yard, Peter has to climb the fence to get in. Once in, Sully throws him a bolt cutter to cut the chain holding the snowblower. Why didn't they just use the bolt cutter to get in instead of climbing the fence? And if that wasn't possible, how did they get the snowblower out?