The upcoming film stars Ian as an aging Sherlock Holmes, who is unable to let go of an unsolved case from his past.
Based on Mitch Cullin's novel 'A Slight Trick of the Mind' , 'Mr Holmes' begins in 1947 when an aging Holmes returns from Japan, revisits an unsolved case which forced him into retirement, and searches for answers to the mysteries of life and love.
'Mr Holmes' also stars Hattie Morahan, Patrick Kennedy, Hiroyuki Sanada, Roger Allam, Philip Davis, Frances de la Tour and Milo Parker.
Mr. Holmes will be released in U.S. on July 17 and UK on June 19.