I'm going to begin this review by saying that "Once Upon a Time... in Hollywood" is not worth your time. The only great thing about this movie is the production design and some of the "cameos" are kinda cool, but everything else is either average or downright bad. The movie has a good rhythm, but the plot itself is extremely boring and the characters are not better. Leonardo DiCaprio's character is decent but Brad Pitt's character and Margot Robbie's character lack any depth and are just there for looks. It's infuriating to me that Brad Pitt won the Oscar for best supporting actor over Willem Dafoe when all Brad Pitt does in the movie is getting in fights and standing around with his abs showing. Margot Robbie's character is exceptionally redundant because the side plot that she's in is somehow even more pointless than the main plot but she still gets lots of screen time, and Tarantino obviously didn't forget a shot of her feet. They could have made this movie much shorter and by doing so also made it much better. The ending is the only interesting part of the movie but it's disconnected from the rest of the movie and disrupts the rhythm which is jarring and makes the end of the movie unsatisfying.