Costume Designer, Luca Mosca, has posted photos on his website of the John Wick cast in costume that he designed for the first film. Thanks to Ayako for tweeting the link.
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For those who like bland and white photos OK Magazine, Russian edition has posted the Exposed poster and a screen capture of Keanu.
Update: Many thanks to Erza Blue Stevens who shared a clip of a take from the filming in Central Park on November 30 on FB.
Many thanks to Actor-Schnider Simeon who shared his selfie with Keanu on FB. The photo appears to have been taken on the set on Thursday, December 3.