I just realized that I'm not a fan of the "must see before you die" gambit as a method of nudging people towards a valuable experience, because....well, how else are you going to experience anything? Presumably you will be alive while watching or doing anything on a "bucket" list. I'd prefer to use the words: "see while you are alive", if anything. However, with that bow to my peeve regarding the author's phraseology out of the way, I'll simply say: Take a look at this excellent list of documentary films. (The list's author includes pictures and an illuminating recap of each film.) See a bunch of these films! After reading it today, many titles will be going on my zip.ca.