Tuner stars Dustin Hoffman as a piano tuner and Leo Woodall as Niki, his apprentice with ultra-sensitive hearing who discovers he has a talent for safe-cracking. It's directed by Canadian filmmaker Daniel Roher, who won the Oscar for best documentary feature for Navalny. The CBC's Eli Glasner says Tuner's musicality and sound design pull you into Niki's sensory world. »»» Subscribe to CBC News to watch more videos: http://bit.ly/1RreYWS For breaking news, video, audio and in-depth coverage: