He made nothing up. Nothing. He even showed footage, of Lucus acting like it was his first time directing a film. Now, one could say "Hey, he probably used all that out of context, and "fabricated" clips to create a lie using cleaver editing..."
I watched that making of. And I can say it did not. Lucas makes horrible, amatur decisions. He sits on his ass, and calls action (sometimes he forgets...his words) and cut (forgets as well), shoots two reverse angles, and calls it a day. Where's the style? The flair? Where does the creativity come in? RLM goes into detail about this, and after that little bit, I was so disgusted with Lucas, I actually made it my civil duty as someone who wants to make films, not to ever look up to this man.
When you see footage of Lucas talking to the actors, you dont see someone who wants to grab a good proformence, you see someone who wants to film two objects in a room, and then fill that frame with more objects. I mean hell, they could've filmed this entire movie in New Jersy in some ally....but if they had the characters and profromences down, ____....you could've felt something for these characters.
I remember being 12, seeing ROTS opening day. Sure I loved it, but I remember how disjointed the opening sequence felt. I still enjoyed it, but RLM made a great point. I mean, ROTS, you start of with an intense battle scene, followed by goofy R2 comedy, back to intense battle, back to goofy comedy, and then to cutting off a person's arms, and head...and then back to goofy comedy. What?
That's like if in Seven, after Brad Pitt opens the box, Morgan Freeman looks into the camera and goes "Well, now, she'll never get ahead in life..."
And It wasnt just ROTS. TPM did it too...the Editors even acknowlages he did this. They go from goofy Jar Jar, to goofy Anakin, to intense saber fight, back to goofy Jar Jar/Anakin, to Qui Gon's death, BACK TO GOOFY JAR JAR AND ANAKIN.
And if you continue to watch the documentary, you can see the editors getting frustrated with Lucas' tinkering with the proformences. He's able to change what an actor does with the click of the mouse. The editors do it, and then look at the camera, with this look of "What the ____ am I doing"? And even discuss their distain with what he's doing, without outright saying it. But you can feel it.
That's not how you make a movie. It's not about YOU. It's about EVERYONE. It's a collaborative process. That's what makes movies work.
That's why these films are terrible. Because a man with a huge ego, and intent to make too much money is running the show.
By the way, I'm so very aware that Hollywood is a business and pretty much exists to make money...however, you dont go into a project going "____....this is pointless if we dont make bank." Which Lucas outright says. "We'll never beat Titanic...."
WHO CARES! Make a great movie, and you just ____ing might!
) seem to not acknowlage the flaws, and make cases to defend things that really couldnt be defended logicly. 
