Always enjoyed Quentin Tarantino and Spike Lee, both contemporaries of mine I am 60. Once is a jewel, it presents the time period, the huge shifts in Hollywood and uses Manson's murderous Family.
The biggest quirk is Quentin Tarantino uses the same method that was used in Inglorious Basterds. Tarantino changes History and though the film is 3 hours it was a fun ride in an alternative universe.