Really, a lot good people can't quit their jobs a try something like that because they have families and couldn't afford to pay others work on it etc. etc.

I'm sure if it took off, they'd get to be project lead with a nice pay increase - which is much better than would done otherwise, because they were never going to quit (well not least till their family grew up).

Also, who knows they could use it as springboard for project #2 - the sequel usually makes more money than the original movie.