This isn’t a list of the best movies to watch while you’re stoned, or even the best movies about people getting stoned—although every one of these films would belong on at least one of those lists, and several would belong on both. Instead, these are movies that in some way proved game-changing through cultural impact.

To burn through the most obvious example, Reefer Madness (1936) is actually terrible on every level. Not only is the infamous marijuana morality play’s description of cannabis as an “unspeakable scourge” laughably wrong, the story itself is way too long, incredibly boring, and endlessly repetitive, with wooden acting and barely passable production values.

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