Purportedly, there are film schools that use this movie as a case study in film-making. One can see why, because this movie's list of not-to-dos can easily fill an entire semester.
I have a personal axiom about movies, and it goes something like this: "Anyone, at any time, with enough perseverance, can make a film; only a select few, on the rarest of occasions, with a lot of luck, can make the great film."
If you're remotely into movies, you likely would have heard of a film called “The Room” (2003). Written, directed and starring first-time filmmaker named Tommy Wisseau, it has achieved legendary status for its hilarious ineptness. If you don't know what I'm talking about, just do a Youtube search with the keywords “the room rooftop.”