There's a new feud brewing in Hollywood, between actors Kevin Coster and Stephen Baldwin. It's really more of a sideshow to one of the biggest news this year, the BP oil spill on the Gulf of Mexico.

Stephen Baldwin accused the Dances With Wolves director of duping him of his shares for the oil-filtering device made by Costner's company Ocean Therapy Solutions. The several such devices were purchased by BP during the oil leak in the Gulf of Mexico. According to estimates, the deal has a value of $52 million.

According to a filed lawsuit posted by entertainment Web site TMZ, Costner agreed to have Baldwin enter Ocean Therapy, assuring Baldwin 10 percent of shares in the company. He said that Costner lied about plans to sell the 32 devices, which separates oil from water, to oil corporation BP. At the time, Costner said that the deal did not exist.

In the lawsuit, Baldwin suggest that Costner conned him into selling back his shares so the latter could make a higher profit with the $52-million worth deal with BP, and he wants to be repaid damages.

Costner purchased Ocean Therapy Solutions the US government for $24 million back in 1995. Back then, the oil-filtering devices attracted little commercial interest until the oil leak in the Gulf of Mexico this year when BP purchased six of the devices for testing in May, and later ordered to expand its purchase up to 32 oil-filtering devices. Kevin Costner's company is now valued at $34 million.