गूफ़

Throughout the movie Chuck has a mark, either a mole or a birthmark, on his right side of the chin. When he encounters the camels the mark is on the left side.

When Chook goes back to the car (at the end), sunlight can be seen through his hair on both sides of his head from behind, indicating that his face is in full sun. The following shot from the front shows half his face in shadow.