It's still impressive that a hollywood actor/director can even mention a convolutional neural network, and he's right in how it works. His company InterPositive that makes AI tools for filmmakers did recently get acquired by Netflix [1], who in turn have stated the desire to create new series and films with the help of AI. So it's highly credible that he can whip up some CNN code in PyTorch.
[1] https://about.netflix.com/en/news/why-interpositive-is-joini...