Spider-Man: Turn Off the Dark actor Craig Henningsen performs beneath the 21-foott wide “Spider” sculpture by artist Louise Bourgeois outside Christie's auction house on November 4, 2011 in New York City. The bronze “Spider” (1996) will be on view through November 8 when it will be auctioned at the Postwar and Contemporary Art Evening Sale at Christie's. The sculpture is expected to realize between $4 to 6 million. (Photo by Mario Tama/Getty Images)

A person stands near the “Untitled” installation of miniature elevators by Maurizio Cattelan at a preview of the Postwar and Contemporary Art Evening Sale at Christie's auction house on November 4, 2011 in New York City. The 33-inch functioning elevator installation is expected to realize $400,000-$600,000 at the November 8 auction. (Photo by Mario Tama/Getty Images)