I know you'll find it hard to believe, but the following psychedelic mind trip with Will Smith eating spaghetti is 100% AI generated: video and audio.
This video was created by someone going by RobotNamedRoy using StableDiffusion.
If you're into this sort of thing, and want to try to generate some videos on your own, here's a tutorial:
While the technology is not quite up to, say, Avengers: End Game standards, Joe Russo, the director of that movie, thinks that with the speed the technology is moving, we're two years out from full-length motion pictures being generated with voice commands on our couch.
You could walk into your house and say to the AI on your streaming platform. "Hey, I want a movie starring my photoreal avatar and Marilyn Monroe's photoreal avatar. I want it to be a rom-com because I've had a rough day," and it renders a very competent story with dialogue that mimics your voice. It mimics your voice, and suddenly now you have a rom-com starring you that's 90 minutes long. So you can curate your story specifically to you.
Of course, there's always the chance that Marilyn Monroe might have monstrous mouths for eyes, and that she'll try to convince you to kill yourself to save the environment.
But I'm sure it will be fine...