After being unofficially named the Untitled Cheating Project and Cheaters, Universal Pictures told HollywoodChicago.com that the official name of Ron Howard’s Chicago-filmed picture has changed from What You Don’t Know to The Dilemma. Universal officially titled the film as What You Don’t Know just two weeks ago. The Dilemma stars Vince Vaughn, Kevin James, Jennifer Connelly, Winona Ryder, Channing Tatum, Queen Latifah, Chelcie Ross, Amy Morton, Gary Houston and Connor Del Rio from director Ron Howard and writer Allan Loeb. Principal photography for The Dilemma began on May 25, 2010 and runs through Aug. 6, 2010. After filming all around Chicago, the project most recently filmed at the United Center. We have learned that the scenes used up to 900 extras as Chicago Blackhawks fans on a single day. The Dilemma, which will be released on Jan. 14, 2011, will film this Friday in Chicago’s Chinatown.

Source: HollywoodChicago.com