Tiger King
An engaging documentary that at first doesn't seem like much but transitions into some the most "How did they film this!!" material I have ever seen. The film is the ultimate thesis on "Power tends to corrupt, and absolute power corrupts absolutely" and the film demonstrates this moral with flying colours.
Sure, this film isn't anything out-of-the-ordinary in its technical aspects such as cinematography, but the craft is clear in the film's editing, which created a non-linear structure which keeps you engaged fully through its 7 episodes. While I find "Making a Murderer" more striking and poignant, "Tiger King" deserves all the praise it is getting, even if the discourse is going to get annoying soon.