Christie's auction house is selling an original Darth Vader costume from the Star Wars movie franchise.The jet-black helmet, mask and armor worn by the intergalactic villain are expected to sell for between 160,000 pounds and 230,000 pounds at a sale of pop culture memorabilia next month. Christie's said that the costume is thought to have been made for The Empire Strikes Back, the second film in George Lucas's sci-fi series, released in 1980. Christie's did not name the owner, identified only as an American private collector. The sale takes place on 25th November 2010 in London.