Cosmopolis UK Release Date - June 15, 2012. Rated '15'

According to LaunchingFilms.com, the Cosmopolis release date for the UK is June 15th

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KStewartUK received a reply from FilmDates.co.uk with the same release date. 

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  RPLife/ Gossipgyal

 Update! via CoventryTelegraphs In other BBFC decisions, the upcoming drama Cosmopolis, directed by David Cronenberg and starring Robert Pattinson, also gets a 15 certificate for "strong sex and language." It is due in cinemas on June 15, 2012, and has a running time of 1 hour 49 minutes.
via RPLife