Star Wars 4 (1994)

A trailer for a Star Wars sequel that never existed, imagined as a 1994 release starring Arnold Schwarzenegger, with Will Smith and Samuel L. Jackson, and scored with John Williams, Michael Kamen and Brad Fiedel cues. Ryan Lightbourn built it largely on open-weight models running on his own machine: SDXL and Flux.1 Dev stills through SwarmUI, animated with Hunyuan Video and Hailuo MiniMax, with Grok 2 in the mix. It passed 375,000 views, an early hit for the what-if trailer as a genre of its own.