1. The part where Lex and Tim are in the kitchen and Tim just slammed the door on the raptor who and followed him into the freezer.
2. Watch when Tim slams the door and you see Lex running and screaming. In a split second they seem to swap places and you see Lex locking the door and Tim gasping for breath a few feet away. 3. If Tim was limping before-hand and was out of breath how could they have swapped places and how could he have gotten so far away in a second.