Details
Country: USA
Release Date: 2010-12-22
Filming Locations: Chicago Hilton & Towers - 720 S. Michigan Avenue, Downtown, Chicago, Illinois, USA
Earnings
Budget: $100,000,000
Opening Weekend: $30,833,665 (USA) (26 December 2010)
Gross: $148,383,780 (USA) (13 March 2011)