What scene in a movie must be explained to be understood?

A Space Odyssey: 2001The MonolithWhen I was younger, the monolith made no sense to me. I didn’t understand it. All I heard was creepy music and the characters looking up at it in awe.So basically a monolith represents progress in humanity and a step closer to becoming more intelligent.When progress was made, the monolith would appear.When the monkeys were fighting at the beginning of the film, and the one monkey got the idea to use a stick to hurt the other monkeys, that was a step forward in progress for the human race.In the book series, three monoliths are discovered in the solar system.So hominids (human ancestors) and humans have discovered these through time. via /r/movies https://ift.tt/3A3TP3D