Found by @CrayonRosary@lemmy.world: it originates here: Dune by Alejandro Jodorowsky - Teaser Trailer (1976)

Source: used as B-roll in the intro of this video: https://www.youtube.com/watch?v=f8AJk2Sns_k&t=3

Here are individual frames but image search (SauceNAO, Google Lens, IQDB, Yandex) has not been helpful.

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Transcript: Close-up shot of a woman’s face with a neutral expression, short brown '80s hair, lipstick, thick sharp eyeliner and glowing aqua irises. Widescreen with a higher-than-usual amount of film artifacts.

  • ChaoticNeutralCzech@lemmy.oneOPEnglish
    1·
    20 hours ago

    You’re right. Later in the video, this shot with the same fake film effect appears and that’s indubitably AI (look at bottom right):

    The video narration implied this is footage from a rare or unfinished film, though.