Auction house Christie's big contemporary art sale in New York isn't until November 13 but the art world is already buzzing about the fact that one of Andy Warhol's iconic Liz Taylor portraits will be on the auction block. The turquoise Liz was created in 1963 and is part of Warhol's celebrity portraits that also include Marilyn Monroe and Jackie Kennedy. This work also has a celebrity owner. Actor Hugh Grant bought the painting six years ago for $3.5 million at Sotheby's in New York. He now could realize anywhere from $25 million to $35 million on his investment.