re: #16 Belafon

Rolling Stone has a list of the 150 best sci-fi movies of all time. As with any list like this, it’s subjective, bit it would definitely be interesting to watch them all.

rollingstone.com

TL;DR

I really don’t care about those outside of the top 5 and, except for #2, which I haven’t seen (nor heard of), I’m satisfied with their choices. Putting 2001 as #1 would be my choice as well. 3, 4, and 5 could be in any order afterwards.