It all depends on which side of the desk you're sitting on.
Lord of the Rings, I think, is far and away the most brilliantly done stuff.
When I got my first glimpse of Hugh Jackman as Wolverine, my breath caught. In that single instant, he was Wolverine.
I realized the only thing I owed my audience was my own judgment and my own best effort.
A writer writes. Period. No matter if someone is buying your work or not.
I've had editors over the years who couldn't find a clue if it was stapled to their butt.