Runway releases Last Night in Project Luxo; crediting questions follow

• Runway posted Runway's Last Night announcement as a fully AI-generated short film set in Tokyo, saying it was made in a single day by one person.
• A crediting dispute started almost immediately when kaigani's reply pointed out that the post did not name the creator.
• In a follow-up, iamneubert's attribution reply said the film was made internally at Runway by @umpherj, which clarified the missing credit after the fact.
• Runway's Project Luxo post frames Last Night as part of a broader campaign arguing AI video has crossed the uncanny valley, with earlier Luxo film The Rogue positioned as a ten-minute project made in under a month by a single creator.

You can watch the Project Luxo page, compare it with Runway's Last Night post, and see the attribution wrinkle in real time through the public crediting question and Runway's clarification. The other useful detail is that Luxo was not introduced as a one-off film drop. Runway's earlier post says the company had already been showing these shorts privately to producers, directors, writers, actors, and reporters.

Runway described Last Night as a fully AI-generated short film about a life-changing evening in Tokyo seen through fractured memories. The company also made the production claim unusually concrete: one person, one day, inside the new Project Luxo label.

That combination is the whole pitch. The film is being used as evidence for Runway's broader claim that AI video can now disappear behind story rather than announce itself as a demo.

The main pushback was not about whether the film looked good. It was about authorship. kaigani's reply challenged the "just one person" framing because the original post did not identify who that person was.

Runway's public answer came from iamneubert's reply, which said the film was made internally by @umpherj and that outside artists would have been credited. That means the attribution arrived as a reply, not in the launch post itself.

Project Luxo is Runway's new wrapper for these narrative showcases. According to Runway's launch thread, the company had been screening the films privately for Hollywood executives, producers, directors, writers, actors, and reporters, and said the response was "unanimous."

The earlier Luxo film, The Rogue, adds a second production benchmark to the story. Runway's post says it is a fully AI-generated ten-minute film that had sat unproduced for more than a decade in the traditional system, then got made with Runway in under a month by a single person. Cristóbal Valenzuela's follow-up pushed the same line more bluntly, saying the screenings changed people's sense of timeline and what complex AI storytelling now makes possible.