The most impressive for me, in a slightly different way, is A Mind is Born, because it manages to do some simple but impactful sound and video in 256 bytes, on a Commodore 64:
I was at a film festival, and saw a short film about AI or something. The film used just the music for the end credits! I told the director i appreciated the reference, and he was amazed someone recognised it.
https://hackertimes.com/item?id=26511266