Grass Fed, the documentary: Getting slimmer, courtesy medical marijuana

Montreal filmmaker Ezra Soiferman could have considered calling his latest documentary Mission Impossible. The task at hand was daunting: Soiferman sought to chronicle wild-man Montrealer Mike Paterson’s efforts to get in shape before his wedding.

Paterson, a gonzo wit/wrestler/actor/pitchman, merely wanted to lose 50 pounds in four months before taking the marital tumble to his beloved Monika Schmidt in Mexico. He also wanted to rid himself of his debilitating sciatica condition.

No small task, since Paterson had spent much of his adult…