Write Mel. He might buy you Screen Play at least as. Start.
You can’t just write these guys. In the early 2000s I just wanted to GIVE Gibson a copy of “Patriot’s History.” His agent: “Mel doesn’t read.” (Say what???). He absolutely refused to take it.
There are real concerns in Hollywood that getting ANYTHING opens you up to IP lawsuits, even if you didn’t get the idea from whomever sent it. That’s why the only way to get anything to anyone is either they, by accident, read it and contact you or you have to know someone.