Analyzing the overall structure of 2001: A Space Odyssey seems to be rather easy since Stanley Kubrick added titles to important chapters of the movie (with exception of “Intermission” which is marks a break for the audience in some cinemas (and is missing in all TV versions of the movie I know of)).
Going by the title cards in the movie it contains three chapters:

But now a problem kicks in. The problem is the fact that an important part of the movie plays on a completely different time but isn’t marked with a title. Of course, I am talking about the early third of the movie which shows Dr. Floyd and the monolith on the moon. If you add this section to the structure you get something
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