Beyond the Valley of the Dolls (1970)
somniloquist 2 points 4 years ago. (Contains Spoilers)

Whatever you’ve heard about this movie, it’s so much more. Heard the colors are loud? They’re louder. Heard the plot is oddly contrived and overly complicated? It’s positively irrational. Heard there were boobs? Yeah, and they’re all huge.
After this film was sent to the ratings board and returned with an X rating, rather than the R that was expected, Meyer wanted to go back and put in even more sex. Ebert talked him out of it. Maybe that’s for the best, as this one is basically perfect as it is.
If you’ve never seen this movie, prepare to discover the origins of pop culture references that have been staring you in the face for 50 years, including the immortal “it’s my happening and it freaks me out!” and “what I see is beyond your dreaming.” You’ve heard bits of this movie in songs, in samples, and yes, in the first Austin Powers movie.
If you love 60s kitsch, watch this. If you love John Waters, watch this. If you can’t afford drugs but want to feel totally out of your mind, watch this.