How does someone emulate a character who was once rumored to have once killed three men in a bar with a pencil? Keanu Reeves went through three months of "John Wick boot camp": intensive training in martial arts, gun work, fight choreography and stunt driving.
Reeves' preparation for the sequel built on his action-star past and skills he learned for the original "Wick" film, including training in judo and jiu-jitsu.