F for Fake (1973) von Orson Wells:

If you want to make video essays, there’s no better film to study than Orson Welles’ 1973 masterpiece, F for Fake. There are a million lessons to take away from it, but today, let’s see what it has to teach us about structure. NO SPOILERS. 

https://www.youtube.com/watch?v=1GXv2C7vwX0&ab_channel=EveryFrameaPainting