Just a few thoughts... Some will echo what I've said in fe.org...

But I love the prologue as it is, visually, and musically it works. The voice-over works but there is too much obvious noise there. I'm not sure what you would do about that... I would suggest using longer fades to mask it more, or clip it just before you speak. As long as your voice is there, I'm not sure you'll hear the noise. I'm pretty sure you would drown it out, and I think you can do this without re-dubbing.

But that's my only real hangup there.

The Anakin voice re-dub could be great if done subtly. But I'm afraid to really know for sure, you'll have to jump in and try it.