Before watching this film, it is CRITICAL that you have somewhat of a knowledge about Charles Manson (and Sharron Tate). If I did not have my sister next to me pointing out the small references to this serial killer's story, I would not have understood at least 80% of the movie. Understanding the significant details adds a specific intensity in every other scene, like you know something that the characters don't, and always keeps your eyes glued to the screen.
Although I can see how a few scenes were fairly slow, and the middle was not particularly engaging, Tarantino definitely had a purpose for each scene, even if I don't have all the answers. Even the smallest of details, like a gun holster of beer or the way the characters drive down the highway, reveals hidden thoughts, feelings, and backstories to the audience. If you do not catch onto these specific details, I can understand how some points seem overindulgent of "the golden age" of Hollywood. But the beautifully nostalgic filming in these moments is what makes this film not only entertaining, but a piece of art.
It's the juxtaposition of Sharron and Dalton's storyline, it's the wonder and the dimensional characters, it's the brilliant manipulation of the audience's emotions, causing you to laugh, scream, and cry (sometimes simultaneously) that makes this film utterly perfect.
The ending leaves you wondering "What if..." over and over again, questioning what reality would look like if these fictional characters of Rick Dalton and Cliff Booth actually existed. And I think that's when I realized how perfect the title was: it's a humorous, fairy-tale (although not completely violent-free) ending to the tragic fate of Hollywood in the 60s...