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How Do You Know
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Release Date (47)
Also Known As (AKA) (47)
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Release Date
United States
December 13, 2010
(Westwood, California, premiere)
Canada
December 17, 2010
United States
December 17, 2010
Denmark
January 13, 2011
Switzerland
January 20, 2011
(German speaking region)
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Also Known As (AKA)
(original title)
How Do You Know
Argentina
¿Cómo saber si es amor?
Australia
How Do You Know
Belgium
Comment savoir
(French)
Brazil
Como Você Sabe
Bulgaria
Как да разбера
(Bulgarian)
42 more
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