I can dig it.
I was talking full on - Mysterio acts like the entire movie is about him. Getting his own 'In a world.....' monologue and everything. Framing his origin story to make him look like a good guy.
I think there's a bunch of stuff you can do with the character being involved in films - Mysterio's origin story - in part could be used to make a pretty convincing fake film
Or
there's a opportunity to have him do the fake Spider-man story line from the comics
So we see Spider-man doing a bunch of criminal fukkery, then he unmasks and it's Gyllenhall. Even plays into the story about Jake being picked to replace Tobey.
I thought of the fake Spider-Man thing. He could frame him. But the movie takes place in London so I’m not sure about that. Meh not my job. I hate writing the movie in my head before it comes out. I’ll be there next July