Tarantino asks for critics at Cannes to refrain from spoiling the film. https://www.indiewire.com/2019/05/q...upon-a-time-in-hollywood-spoilers-1202143055/ Uniformed speculation about the plot/ending of the film on my part based on what Tarantino has said publicly about the film: Spoiler: My guess as to how the film ends We know that the film features Tate/Manson, we seem to see mansonites looking threatening in the trailer, we know it was originally intended to be released around the anniversary of that Tate killing, we know that Tate's sister approved of the film and we know that Tarantino has asked for people to avoid spoiling the film. My guess is that the film ends with Tate surviving the film and Manson & his "family" being killed instead, revising history in much the same way that IB did. I can't imagine what other ending would simultaneously please Tate's sister while also having the potential to be spoiled (in a way that just not featuring the attacks wouldn't, for example), or that would allow Tarantino to indulge in his typical bloodbath shtick. Unless the whole Manson thing is just a very small side part of the film, though that wouldn't gel with how the film is being presented at all.