About the film
Arrow is a sci-fi short posted by the YouTube channel DiDi_OK in December 2025. It runs about seven minutes. One day a giant mouse cursor appears in the sky, and the world changes overnight. The description says people begin to glimpse a hidden truth beneath reality and humanity starts to unite to find a way forward; the story follows several characters and shows, through their eyes, how the world and their relationships change. The title asks the question outright: if reality is a simulation, who is moving the mouse?
Who it's for:fans of idea-driven sci-fi about simulated reality and the end of the world as we know it.
Before you watch: free on YouTube, about seven minutes, and the platform may show ads. YouTube offers auto-generated English subtitles; we haven't listened to the dialogue. The description marks it as an AI short only through its title and tags and doesn't name any tools. The creator says it was a finalist at the Artefact AI Film Festival; we haven't checked that with the organizers. No reuse rights are granted.
Based on the film's description on YouTube. Watch the film itself for the full picture.
How AI was used
The creator labels it an AI short film in the title. The description doesn't name the AI tools or say how they were used.
Sources checked; not a review or endorsement of the film.