In regards to 2001: A Space Odyssey:I think it was actually somewhat stunning at the time for the "lightshow" sort of scene near the end. It also has some extremely cool space "photography" and the classical music is cool. And HAL is a cool part of the plot too. And so is the obelisk! Really it just has a lot of cool theme-ery, from what I remember it's just how little seems to happen and how little dialogue there is that's annoying. There's also sequel that I think was good (?) (it actually has dialogue and plot) but which I remember almost nothing about.
In regards to 2001: A Space Odyssey:I think it was actually somewhat stunning at the time for the "lightshow" sort of scene near the end. It also has some extremely cool space "photography" and the classical music is cool. And HAL is a cool part of the plot too. And so is the obelisk! Really it just has a lot of cool theme-ery, from what I remember it's just how little seems to happen and how little dialogue there is that's annoying. There's also sequel that I think was good (?) (it actually has dialogue and plot) but which I remember almost nothing about.
https://www.youtube.com/watch?v=5ch5WC54egU