Once Upon a Time in Holywood: Whoa. It's hard to be on the level of Inglorious Bastards and Django Unchained, but this one did it. So much more enjoyable than Tarantino's last movie. Really didn't understand the point of the movie and how the story tied in with the Sharon Tate
Tarantino wanted to make a movie about the relationship abd dynamics between and actor and stuntman that had a closecrelationship and had worked together for years after he saw one such relationship on the set while making one of Deathproof, Django or Inglourious.
He also wanted to make a film about late 60s Hollywood when everything was changing. Less cowboys, more hippies, in real life and on television as well. Lots of famous actors couldn't transition or struggled transitioning. It's a love letter to this time period and to this age in between two eras. Manson Family happened to be in that area at that time, and he wanted to add that stuff in so he just did.
The film is also about Rick and Cliff really representing the old guard and trying to adapt. Rick plays a cowboy on TV, Cliff basically IS a cowboy if you think about it, and at one point he's out doing wild west small desert town cowboy stuff while Rick is acting that character out on camera at the exact same time.
Don't want to get into spoilers on a public forum like this, but that's the general idea.