We do not have many jazz musicians among us, let alone jazz drummers. In Whiplash (《鼓動真我》), Miles Teller, who has 10 years of drumming experience, takes us to a world hardly known to many. Becoming "one of the greats" - as a top drummer - requires sweat, tears and even blood of hard work. The 27-year-old actor's preparation for the role as a jazz drummer involved not only four hours' practice a day for several weeks. At both rehearsals and filming, the tiring drumming also caused blisters and bleeding, leaving blood on his drum sticks and drum set.