Reviews provided by RottenTomatoes
Los Angeles Times:
A moderately successful guy's movie with both weak and strong elements where lots of things are brilliantly blown up and few things make any kind of sense.
In the tradition of the old Westerns and Mel Gibson's Road Warrior flicks, this film provides good escapist fun.
It's one of those marginal pictures you're not unhappy to have seen, but can't quite recommend.
Waterworld isn't Fishtar, but Kevin Costner's pricey, post-apocalyptic sloshbuckler isn't a seafaring classic either.
If the story seems a little waterlogged, it's still big, loud, and fun to watch.