Claire, Brady and Duncan jump from a blazing boat, but there are no flames by the time they get to dry land.
When they are attacked on the boat, Claire jumps with her book bag, she forgets it in the water, but a few scenes later, she is carrying it
Several times through the film, Flat Dog changes size.
In the close-up of the old man talking and flying in the helicopter, the paintwork on the helicopter is dull green. When the helicopter lands, it is a brightly shining color and looks waxed.
When Brady and Claire are making out in the woods, Brady puts his hands around Claire's neck, but in the next shot Brady's hands are at Claire's waist.