(at around 52 mins) When Sean is pulled through the window with the chain by Ray Sawyer, the whole window behind him shatters. However, a few moments later inside the house - the window has somehow repaired itself.
(at around 36 mins) When Sean gets out of the lake, he is wet and wearing a bathing suit. When he mounts his motorcycle less than 30 seconds later, he is fully clothed and completely dry.
(at around 18 mins) While Ray is lying dead on the table in the morgue, his pulse is visible in his neck.
At 33:27, you can clearly see one of the camera crew guys standing on the side of the truck.