The famous piano of Casablanca went for $2.9 million. It's the one where Sam plays "As Time Goes By" in Rick's Cafe Americain for Ilsa, and Bogart hears the tune and confronts her after her long absence. It's the piano where Bogaert hides the letters of transist papers he got from Peter Lorre.

http://www.upi.com/Entertainment_News/Movies/2014/11/24/Casablanca-piano-sells-for-29M-at-auction/2591416869591/?spt=rrs&or=1

Film budget: $950,000 (estimated), 1942 dollars

"Dooley Wilson (Sam) was a professional drummer who faked playing the piano. As the music was recorded at the same time as the film, the piano playing was actually a recording of a performance by Elliot Carpenter who was playing behind a curtain but who was positioned such that Dooley could watch, and copy, his hand movements. "

Robert