Many thanks to you all.
It's still early days, and this meeting was just them tossing some notes out to me. It's pretty much an open assignment so they have some ideas about what they want, but they're also willing to listen to anything.
They had some thought on my pitch. A lot of stuff they really liked. A few things they didn't. One key thing they pointed out which I'm mildly ashamed of. So now I've got four weeks to write up a much more detailed ten-page treatment, and if they like that I get hired to turn it into a screenplay. And then that get pitched further up the development line, and so on, and so on.
Expect to see this on the big screen for Christmas 2017.