Film show: Park Chan-wook's multi-layered, mysterious 'Decision To leave'

Hovering between a neo-noir and a semi-romance, "Decision To leave" saw Park Chan-wook crowned best director at this year's Cannes Film Festival. Critic Lisa Nesselson tells us about the visual choices, twists and turns that echo the Korean director's virtuoso touch in his previous films "Old Boy" and "The Handmaiden".