The piano which featured in one of movie classic Casablanca's pivotal scenes has been sold at auction for $600,000 (£375,000).

The upright which Dooley Wilson performed As Time Goes By on in the 1942 film went under the hammer at Sotheby's on Friday (14Dec12).

Experts had predicted the piano, which Sotheby's sold to a Japanese movie memorabilia collector for $154,000 (£96,250) in 1988, would fetch as much as $1.2 million (£750,000).