It is the breakthrough the clean tech sector has been waiting for. Not another report showing investment is rising, not even a solar panel that can produce energy at grid prices, but now the industry can instead sit back and enjoy its first celebrity spat.
The spat is the result of Costner's high-profile support for a new technology that promises to clean up oil spills, with Baldwin alleging that he was duped into selling his share in the project just before the company, Ocean Therapy Solutions, announced it had sold some of its cleaning devices to BP in the wake of the Gulf oil spill.
Baldwin, in true straight-to-video legal drama style, is now suing Costner and his partners, seeking $4m (£2.48m) in damages.
Costner for his part is claiming that while it may have been impossible to turn on a news channel last summer without seeing the Waterworld star touting the centrifugal devices, he had no official role within the company distributing the machines, which Baldwin invested in.
Schooled on a diet of Heat magazine and E! Entertainment News, The Sceptic Tank can only hope that the whole affair remains as acrimonious as possible and continues to provide that much-needed celebrity angle environmental devastation has thus far been lacking.
Meanwhile, fingers remain crossed for the Lindsay Lohan v Paris Hilton showdown on the relative merits of solar PV and wind power.
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