What an odd film, it appears to have been written by a 12 year old who manages to cram every boys fantasy weapon,super power and love interest into its rather long story. Sharks that you ride, whales that are hollow, a baddie taken from Blade, guns that convert seawater, a colossal undersea world that we somehow missed. I could go on but it would spoil the film. There is no real plot, we are told the outcome in the first 3 minutes, Nicole Kidman has a fish suit that appears to age, there is no real explanation of what she had been doing for the 20 odd years that she went off grid. Bottom line, the film is complete fantasy with strange humour thrown in amongst gruesome fifer scenes. Very disjointed, almost as though 3 children had conspired to outdo each other then random bits of each story were cobbled together. BUT I actually enjoyed it.