The Waterworld Set
Similar to Titanic, Kevin Reynolds' Waterworld required the construction of an enormous, artificial seawater enclosure to simulate a floating fortress city anchored atop an otherwise submerged planet. The set was built off the coast of Hawaii, and the production was tormented with expensive setbacks. Stranded stuntmen, jelly fish attacks, and a rumored directorial walk-out that forced lead actor Kevin Costner to finish the film himself all contributed to film's $175 million production bill, but none so costly as the gargantuan set itself, which was damaged or destroyed by weather numerous times. Waterworld is falsely considered one of the biggest film failures of all time because of its stunted production, but is actually pretty awesome.