While marijuana use was depicted in the film (with the iconic scene of the family smoking in the living room), many films before it had already depicted marijuana use. Here are a few examples:
* Reefer Madness (1936): This classic propaganda film depicted marijuana use as a gateway to insanity and crime.
* The Wild One (1953): Marlon Brando's character is seen smoking marijuana in this biker movie.
* Easy Rider (1969): This iconic film features extensive marijuana use throughout the story.
* The Last Picture Show (1971): This coming-of-age drama depicts teenage marijuana use in a realistic manner.
These are just a few examples, and there are many other films that depicted marijuana use before Poltergeist. While Poltergeist may have popularized the use of marijuana in a PG-rated film, it was by no means the first to do so.