Here I put together a whole Slavic cinema that I could remember. Different eras and times. Filmed by different countries and it is worth perceiving them as feature films. Which I could find with English subtitles, I added links. There are many more films, but I have not watched them. Check out Soviet films about Rus on Google and you will learn more. If I remember something else, I will add later.
Trees Grow on the Stones Too (1985)
https://www.imdb.com/title/tt0089322/?ref_=nm_flmg_dr_4
https://www.youtube.com/watch?v=0Zll0akVfmo
Prince Vladimir (film)
https://en.wikipedia.org/wiki/Prince_Vladimir_(film)
https://www.imdb.com/title/tt0457024/
https://www.youtube.com/watch?v=TqSBZ-FMzjs
Primary Rus film
https://www.imdb.com/title/tt0091876/
https://www.youtube.com/watch?v=holZxzBO08Q
An Ancient Tale: When the Sun Was a God
https://www.imdb.com/title/tt0380726/
https://en.wikipedia.org/wiki/An_Ancient_Tale:_When_the_Sun_Was_a_God
https://easterneuropeanmovies.com/adventure/249-an-ancient-tale-when-the-sun-was-a-god.html
Yaroslav, A Thousand Years Ago
https://en.wikipedia.org/wiki/Iron_Lord_(film)
https://www.imdb.com/title/tt1647692/
https://www.youtube.com/watch?v=307f9ldhQUs
Legenda o Kolovrate
https://sovietmoviesonline.com/fantasy/723-legenda-o-kolovrate.html
https://en.wikipedia.org/wiki/Furious_(2017_film)
https://www.imdb.com/title/tt6054874/
Aleksandr. Nevskaya bitva
https://en.wikipedia.org/wiki/Alexander_(2008_film)
https://www.imdb.com/title/tt1244496/
https://www.youtube.com/watch?v=OyyzKGZlPSQ
The Three Bogatyrs (Cartoon franchise)
https://en.wikipedia.org/wiki/The_Three_Bogatyrs
https://www.imdb.com/search/title/?companies=co0109502
The first three major films after which went the franchise of their overall participation.
https://sovietmoviesonline.com/cartoons/454-dobrynya-nikitich-i-zmey-gorynych.html
https://sovietmoviesonline.com/cartoons/456-ilya-muromec-i-solovey-razboynik.html
https://sovietmoviesonline.com/cartoons/455-alesha-popovich-i-tugarin-zmey.html
With Fire and Sword
https://www.imdb.com/title/tt0128378/?ref_=tt_sims_tt
https://easterneuropeanmovies.com/melodrama/150-with-fire-and-sword.html
Bohdan Khmelnytsky
https://www.youtube.com/watch?v=6U5LmXCmyMM
https://www.imdb.com/title/tt3374220/
https://en.wikipedia.org/wiki/Bohdan_Khmelnytsky
The Pagan Queen
https://en.wikipedia.org/wiki/The_Pagan_Queen
https://www3.123movies.la/movie/the-pagan-queen-z071qry/watching.html
Yaroslavna, koroleva Frantsii
https://www.imdb.com/title/tt0078514/
https://www.youtube.com/watch?time_continue=1849&v=-_3MwoWEFvY
Wiedźmin (The Hexer or The Witcher in English)
https://en.wikipedia.org/wiki/The_Hexer_(TV_series)
https://www.imdb.com/title/tt1070742/