JAWS 3 (1983)

Sheriff Brody's eldest son is now a big wig at the Sea World in Florida.  While his younger brother is in town for a visit, a gigantic Great White shark sneaks into the facility and starts eating people, I'm guessing (in light of the personal vendetta nature of Part 4) in an attempt to eat the two boys.

The idea of Jaws stealthily eating people in a water park is so fucking ridiculous that I can't believe they made a big budget Hollywood movie about it, but they did and it's way dumber than you can even imagine.  Not only did they play the entire thing seriously, but it's shot in a hokey 3D fashion which results in nonstop things pointing towards the camera. It gets old quick. JAWS 3 is a cheesy, entertaining train wreck that's a lot of fun to laugh at. I'm not sure if that's what the filmmakers were going for, but JAWS 3 is a great comedy.

If you are looking for a serious JAWS movie, this isn't it. It's not a horrible film, but I doubt anybody has ever taken it seriously.  Although, I do remember seeing this movie as a kid and that hand in the mouth scene freaked me out.

Part 1 - Jaws (1975)
Part 2 - Jaws 2 (1978)
Part 4 - Jaws: The Revenge (1987)