Of course, there should be a good enough story.

This, right here, is exactly what I'm driving at, and the problem with how megastudio systems work. Corporate movie producers will recognize that there is money to be made by having a movie featuring an empty concept (I.E., Darth Vader killing a bunch of dudes and showing off his force powers), and that premise alone is how the movie is sold into production. "Of course there will be a good enough story," the producer will say to everyone who gets on board.

Then, during the six months before principal photography, they hire and fire a string of writers to figure out what that "good enough" story is going to be, as long as the movie is still Darth Vader killing a bunch of dudes and showing off his force powers.

That's how you wind up with Friday the 13th starring Darth Vader.

Movies worth making start with a story worth telling. Otherwise, you may as well be making porn.