Nobody kicks a shark in the face in The Abyss and for that reason alone it is < Leviathan.
(Real review: a ton of fun, in my opinion. Clearly they're shooting around some of the creature effects when they enter wide shots, but otherwise I really dug it. I had more fun watching this than The Abyss, surprisingly.)
I'll echo AJ Wiley's comment that "I am incapable of approaching films like this without bias."
Is this documentary flawed in some regards? Sure, absolutely. Do I still think it is incredibly important viewing, and worth the time spent watching? Also, absolutely. It's a great place to start, anyway.
Also: Geena Davis and Daphne Zuniga are just the best.
A drunk cat keeps messing around with two families in an attempt to ruin their lives. Or something along those lines. Did I mention that Eric Roberts voices the cat? Did I mention he recorded his voice-over in a garbage can? Did I mention David DeCoteau directed it? AVClub describes this movie as a talking animal movie meets The Room - pretty apt. I won't lie, I laughed pretty hard at this pile of crap a couple times.