Jack Nicholson has become a sort of larger-than-life personality, and his incredible talent as an actor has led to a stunning 12 Oscar nominations. One of his signature performances is in The Shining, where his totally unhinged portrayal of Jack Torrance is one of the iconic movie characters of the last 40 years.

So how did Jack get ready to play such a lunatic? By bouncing around like a prize fighter getting ready to go to the ring, taking some warmup hacks with his ax before he has to attack the door and Shelley Duvall. For fans of Nicholson or just movies, in general, this is a chance to watch a master at work.

[via UPROXX]