Look, we all know that 4/20 is something of a silly holiday. Weed Day is essentially an excuse for your classic stoner-types to toke up (more than usual) and chill on the couch. But over the years, 420 has become something of a day to reflect on how far the cannabis industry has come. It is a day of defiance and a day of freedom — freedom from law enforcement and freedom to medicate with cannabis however you see fit. With that in mind, we’ve collected five films that are worth watching this 420 that encapsulate what it’s like to be a marijuana user throughout the ages.