Yes, in a perfect world it would always be adhered to. It's a good principle in both stage and screen.
However, not following it doesn't
automatically
make a bad narrative.
I agree it can tip a weak film into a terrible one.
But there's plenty of successful productions which sidestepped it and it didn't hurt.
Just as an aside: many of the best principles of theater come from Aristotle. I forget if this one, was his also.
Either way –in today's imperfect world –we can't always follow his advice.
The world has fundamentally stayed the same since his time, but in many crucial ways, we've irrevocably split away from him.
Paul P. Powell, Pool Player

But it should be. It's like false advertising, you expect it to happen.
lukejbarnett

It's just a general principle which can't always be followed to the letter.
Paul P. Powell, Pool Player

or the conversation needs to be interesting. not just some exercise in self fellation

Isn't that the thing they do in Family Guy all the time?

exposition… ruined season three of Reacher for me

Fuck you
lukejbarnett

Boohoo. Too bad you got teased and not pleased. Another time you didn't get to see a woman nekkid.
You little perv you. It's hard to believe you're too stupid to realize that when you make a post like this, people see exactly what a skeevy little perv you are.