The paper is about how to iteratively tweak your rendering pipeline to achieve a certain look. It makes sense that the director of the movie would be involved in that process.
I did. They describe using a Keras implementation, written by someone else, of style transfer, which was invented by someone else, to achieve a particular artistic effect. They use a pre-trained model. They don't even have to buy any hardware, since they used AWS GPU instances. It's a case study, nothing new has been accomplished here.
Do I also get a Verge writeup if I publish a PDF to arxiv about how I compiled and installed tensorflow? The only reason we're talking about this paper is because the name of a Hollywood actress is on it, and because it has the AI buzzword.
Look at the title: "Kristen Stewart co-authors AI paper". 113 points.
The paper itself was submitted earlier, under its actual title, which does not mention Kristen Stewart: https://hackernews.hn/item?id=13443107 6 points! The paper is not very interesting. The only thing that makes it newsworthy is the coauthor.