‘Ikarie XB-1’ Is the Forgotten Czech Film That Inspired ‘2001: A Space Odyssey’
filmschoolrejects.com
filmschoolrejects.com
It is, as you say, a bit dry, though...
Of west Slavic SF, my favourite is definitely "Sexmisja". :-D
In fact all Lipský and Vorlíček films. https://en.wikipedia.org/wiki/Category:Czech_science_fiction... and https://en.wikipedia.org/wiki/Category:Polish_science_fictio...