VIDEO : Exclusive Interview: Cillian Murphy explains what's so great about Christopher Nolan

Actor Cillian Murphy stars in the new World War II drama 'Dunkirk', from Oscar nominated director Christopher Nolan. It's Murphy's fifth time collaborating with the acclaimed filmmaker, after the 'Dark Knight' trilogy and 'Inception'. In this exclusive interview, Cillian explains just what's so great about working with Nolan.