Its playful title notwithstanding, Weed the People is a tough watch-but it's definitely worth sticking with it.

Beyond its plea for research, the documentary is largely hopeful, but for balance could include more anecdotes and details of when the treatment doesn't have the desired results.

Though the film seems pretty thoroughly convinced on this topic, its main argument should ring true even for skeptics: We won't know the answers if, thanks to the drug's Schedule I status in the US, scientists remain unable to study its effects.

Just when you thought there was nothing remaining to say about marijuana, docmaker Abby Epstein brings us the stories of cancer patients and their families struggling against cruel, archaic laws...