I wanted to post some stuff on another forum set, but they wouldn't let me post, so here are my posts (I liked them enough to copy-paste

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In response to the younglings sceneI thought it was done perfectly. The kids naturally turned to Anakin for guidance, since they saw him as one of them - quite a few probably looked up to him, too - and then he ignites his lightsaber. You
know what he was going to do, just not how exactly it happened...which makes it all the more creepy.
My only complaint is that the rest of the film trivialized it. Obi-wan watches six videos or so lasting about a half-second each, then talks as though he'd seen something horrible lasting over a long time. Then they're repeatedly called "younglings" not "jedi children"; it just seemed that the unfamiliar word insulated what he'd done.
I don't think leaving it completely up to the imagination would've helped, there was far too much in the film that that was done for.
In response to a 'what does it take to satisfy you people' threadIMHO, Episode 3 wasn't all that great.
It was good, but there was just too much that seemed like a quick fix to tie the PT up with the OT. There was a lot in the movie, but there never really seemed to be any depth behind it. Reasons, yes. Depth, no. I feel like the majority of the story happened OS, and Ep3 was basically a slideshow of the major parts.
Ex: Palpatine announces the Galactic Empire. Why would any political body cheer about its own near-spontaneous dismantling and reorganization? Why did everyone accept the 'Jedi are traitors' line after the Jedi saved Palpatine's life? Those could've been solved with politicking on Palpatine's part, but none of that is seen or even hinted at. The same goes for Anakin's turn to the Dark side. "Oh god, I just killed a Jedi Master...I've done something horrible...but hey, Mr.Sith, I'll do anything you ask - like slaughter every other Jedi."
In the end, I have to say that the single most memorable sequence in the film was when the Jedi died and got wiped out.
Grievous seemed unneccessary, too. Taking him out would've let GL put in some more explanation and depth and spread out the OT references. He would've been fearsome, except he coughed a lot.
All in all, there were a lot of parts in the movie that I felt like I would've cared, if it had been done differently, but didn't care in its current incarnation.