This was a great read. I think getting your friends to act the thing was an inspired idea, and would have proved fertile ground for rewrites. I wish you all the best with getting this screenplay snapped up. :)

To answer your question, I've had novels published (both traditionally, via a small indie publisher and self-published). But with film screenplays, it's a bit more complicated.

I won't use names or organisations, but about twenty years ago, I had one feature film screenplay read and rejected (with helpful extensive feedback) by a major Hollywood producer, who was a friend of a friend (hence why I was able to get this in front of her without an agent). This screenplay is still sitting on my shelf, as I shifted my focus to novels at that point. But in the last couple of years, I've been commissioned to write screenplays - mostly for short films - at various points by producers, production companies, or television organisations. Whether they then go on to get made is another matter (in some cases, they need to raise cash), but at least I got paid for it (these gigs were all a result of contacts from my TV days). Of course, if anything does come of this, I daresay I'll be shouting about it a great deal. :)