I think one of the most noticeable examples of this is the original Star Wars trilogy versus the prequels. With the original trilogy, people were constantly telling George Lucas that an idea was dumb, or that he should tweak or change something, remove characters, etc. Marcia Lucas, his now ex-wife, won an Academy Award for Best Film Editing in the 70s, and edited the original Star Wars trilogies.
However, twenty years later when the legendary Lucas walked out on set with the script for Episode 1, he was met with raucous applause, after all this was THE George Lucas, he could do no wrong. Not having anyone to point out that your ideas aren’t good is what gets us the Star Wars prequels and their ponderous, meandering political plot lines and lameness.
Hey, I thought Episode 1 was good. It was the only prequel that could stand on its own as a complete story. The others were "Oops, I forgot to plan this out better so let's just add a ton of fighting and action to hide that fact".
I really enjoyed Episode 1 when it came out, but it has some seriously... err.. controversial things, starting with the whole midichlorian thing and finishing with the over choreographed lightsaber fights[0].
The "Lucas can do no wrong" feels pretty present there too.
However, twenty years later when the legendary Lucas walked out on set with the script for Episode 1, he was met with raucous applause, after all this was THE George Lucas, he could do no wrong. Not having anyone to point out that your ideas aren’t good is what gets us the Star Wars prequels and their ponderous, meandering political plot lines and lameness.