But someone made a VERY good point; the confrontation between Obi-Wan and Grievous is not at all appropriate for Obi-Wan facing the man that killed his master. He makes cocky, "funny" comments, like "hello there", "you're move", and "So uncivilized." Remember how furious he was in Episode I? I loved that, and we didn't get that rage or emotion in Episode III. Instead we got Obi-Wan riding around on a lizard and Grievous riding around in whatever that weird vehicle was. I don't know how to address this for my Ep. III.
On the surface I admit this seems like a problem. But with the proper edting I think all of this can be properly rectified. I can see why you'd point out Obi-Wan sarcastic attitude as being an inconsistency, but I don't think so. Remember, at this point he doesn't know Grievous is the Sith from Episode I. Through dialogue that can be revealed, at which point Obi-Wan get's really angry: There is one particular shot of him gritting his teeth in a saber lock with Grievous. If it's possible to extend the actual lightsaber portion of the confrontation utilizing the fullscreen DVD for alterate framings of shots and even reversing and repeating some shots, I think that's a must. The extreme close ups of their eyes would be the ideal place for the identity reveal, cutting one of the two Obi-Wan "I can't be"s from the security recording scene and reinserting it here. Then the "angry" shot, force push, Grievous makes a run for it, with Obi-Wan in hot pursuit. I can do with or without the "So uncivilized" line, with possibly another line from Obi-Wan as he looks down on Grievous' smoldering body. So those are my rough ideas on how to address this issue.