Continuity mistake: When Sarah is on the beach in a gown and slippers, she takes the slippers off, then they are back on, then seen off, on the sand, again.
Factual error: When they are trying to escape by helicopter 2 fighters pop-up and shoot with their machine-guns on the snakes head but when you see close up its raining bullets on their heads while those 2 planes are floating next to the building not above it.
