A lot of movies and shows have characters that aren't explicitly stated to be on the spectrum, but it's pretty obvious that they are. Like Sheldon Cooper from the Big Bang Theory, for example. For movies where the character is actually stated to be autistic, off the top of my head I can think of Please Stand By, Temple Grandin, and A Brilliant Young Mind. For movies that are just relatable to me as an autistic person, definitely X Men (if you like action/superhero movies that is). Stranger Things' Eleven could be seen as autistic, too.
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"Don't mind me. I come from another planet. I see horizons where you see borders." - Frida Kahlo