Can an LLM make a feature-length movie on its own?

How it did Betteridge's Law of Headlines says the answer is no [1] , but I was able to make a feature-length adaptation of William Hope Hodgson's The House on the Borderland. I have a YouTube channel where I mostly get LLMs to write albums and make them into music videos. This naturally made me curious whether an LLM could make a feature-length movie on its own. It doesn't seem like it would be harder to do than to disprove the Jacobian conjecture [2] and if the challenge is to just work for a long time, it should be noted that METR's time-horizon benchmark is saturated. [3] Even with my assistance, I would still say the result is a failure. It's good enough that I'm willing to put my name to it as the first feature-length movie I've made, but that is judging by the standards of small YouTube channels, not movies as an overall category. Why I think it failed I would not say agency is an obstacle for this work. Claude Fable 5 knew what to do and when I gave it permission it was perfectly capable of babysitting hours of video-generation runs, debugging API issues and pipeline bugs, coming up with and implementing edits to the storyboard, and many other tasks without oversight. The main obstacles were LLMs' poor sense of timing, struggles with audio and vision, poor integration of multimodality, and losing details after lengthy sessions. Timing issues The initial storyboard done by Claude Fable 5 had a runtime of 49 minutes, despite being told it was to make a feature-length mo…