YesButTellMeWhy

I'm down.

Just a word of warning, it is very possible (and almost inevitable) the movie executives will change a TON of the precious story you have worked so long on.
I have been dealing with and picking the brains of a few successful screenwriters in the past few months, and this seems to be the case, unless you plan on majorly funding and directing the film yourself, or making an independent film. Studios and producers tend to do this in order to widen the appeal of the movie.
It sucks, I know. But it's become the the norm for screenwriter to give in their work to significant outside editing in order for it to get made, and if you refuse, they've already bought the rights, so they just bring in another writer. It's just what happens. :(