The Adventures of Tintin is widely regarded as a classic of comic art, but some issues are rightly criticized for racial stereotyping and a romanticized view of colonialism. This is hardly surprising, however, as the series dates back to the 1930s.
There are also several animated television series. The best known is a French-Canadian co-production with 39 half-hour episodes.
“é” corrected - thanks.
Regarding Dune: The documentary “Jodorowsky’s Dune” about the production of this probably most influential movie that was never made is well worth watching.
And yes; There are a lot of great comic artists especially from France and Belgium. When it comes to sci-fi I also like Valérian and Laureline among many.