Random movie advice time:
Gandahar is a French animated science fiction film from 1987 about a future utopian civilization suddenly facing a seemingly unstoppable threat of unknown origin. The story follows Sylvain, a man sent to investigate the threat.
It's a film I watched a lot in my childhood, with a really good soundtrack, and some impressive imagery.
Two warnings though: first, it was made on a rather low budget (it actually had to be animated in North Korea!), so don't except a stellar quality of animation, Disney-Miyazaki it ain't.
Second, following the tradition of French science fiction at the time and of the Heavy Metal magazine in particular (the character design of the movie was actually made by French artist Caza, one of the main contributors of Heavy Metal), there is
a lot of explicit nudity. It's largely casual, non-sexualized, artistically-inclineded nudity — there is no porn in that movie, it's a movie kids under 10 watch in France without anyone finding that problematic, but nevertheless, you've been warned.
If you are not deterred, here's a (fan-made, French only) trailer:
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And here's the full movie with English subtitles:
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One last thing: the movie also got an English dub under the title "Light Years", but the music was changed and some scenes were deleted, so I do not recommend it.