Revealing mistake: When they leave the caravan park, look at the wheels of the caravan they are set up to rear steer like a truck trailer, rather than a normal caravan. When they exit the park the caravan tilts, giving a good view of the set up underneath.
Revealing mistake: At the end in Paris, the Eiffel Tower is lying on its side with its bottom arches intact showing no signs of damage, as if someone has just pushed it over.
Chosen answer: Basically, it reverses the psychic connection from the omega seeing all the alphas, to an alpha seeing the omega.
MasterOfAll