Unknown Trivia (2011)

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Unknown Trivia

• According to an analysis done by Box Office Mojo, it seems Unknown's add campaign purposefully alluded to another Liam Neeson thriller: 2008's surprise sensation Taken. The tag-line for Unknown even included the word "take."
• Unknown filmed on location in Berlin including the at Berlin Central Station, Oranienburger Straße, and the Hotel Adlon. The German Film Council contributed 4.65 Million Euros (about 6 Million dollars) to the film's budget.