Goon (2011): Raunchy, hilarious, and bloody, but with a surprising sweetness at its core and a faithful depiction of the sport and the colourful characters found in and around it.
Miracle (2004): You'd expect a Disney film about the triumph of an American underdog to be maudlin, and it is, but frankly so is the true story it tells. Kurt Russell kicks ass as coach Herb Brooks.
Slap Shot (1977): Not a great movie by any measure, but essential viewing as its quotes and personalities have entered the very vernacular of hockey culture. Paul Newman looks like he had fun making this film. You'll have fun watching it.