There was a feature length documentary made for each Star Wars film in the most recent trilogy. Funnily enough, the better/more interesting the film, the better the making of documentary. The Last Jedi had the best, having a more personal and emotional focus on director Rian Johnson, while Force Awakens and now Rise of Skywalker have solid but far more traditional documentary features.
This documentary is probably a more engaging watch than the uneven and ultimately disappointing Episode 9. It's strange to see all this work and passion go into a movie that ended up feeling soulless, but if there's a problem with the writing of the film (as well as unforeseen things like Carrie Fisher passing away before she could film anything for the final episode) then maybe it isn't as surprising.
So no matter what, showing behind the scenes footage and detailed work that went into this film doesn't really make me like the film itself more, but I do respect and now admire a lot of the work put into things that you might not consciously notice, like background extras and detailed costumes and special effects that might only be on screen for a second.
Seeing that technical work behind the scenes was fun. Hearing some of the filmmakers and actors talk about the story and how "emotional" it was is less compelling, because I don't feel as strongly as they do (or as strongly as they seem to- cynical as I am, I suspect this is all a bit sanitised, and not quite as personal or intimate as that aforementioned Last Jedi documentary).
