A woman is killed by monster at the start of the movie, even though the person in question hasn't transformed into it yet.
In the "where are they now" wrap-up, 'museum' is misspelled.
For the research university, they are showing Ruby Diamond Auditorium at Florida State University in Tallahassee. The movie is supposed to be Southwest Florida near the Everglades.
The Sherriff's son takes over his role after he is killed even though he doesn't work for the Sherriff's dept (he's a lifeguard). He takes over the investigation and takes charge over the deputies. This would never happen in reality.