Factual error: During the climax of the film, coffins from the cemetery below rise out of the ground. Only problem: they're rising vertically. Coffins are laid horizontally.
Factual error: Robbie is grabbed by the big, gnarly tree outside his bedroom window during a severe thunderstorm, and Steve rushes outside to save the boy as a full-blown tornado passes overhead. The tornado sucks up the tree (which certainly weighs several tons); yet, completely defying physics, Steve and Robbie remain unaffected by the powerful updraft, even though the two are directly beneath the tornado vortex.
Answer: Ectoplasm.
Phixius ★