That's a terrible way to run an RPG, IMO. But it would be an even worse way to write a movie. Give up 3,000+ years of learning about story in exchange for a bunch of random crap. "Yeah, the lead died from a burst appendix just before the confrontation with the big bad, but one of the extras introduced in the next scene got a really lucky shot and killed the bad anyway, so I guess it all balances out."
