timdiggerm said:

How are you accomplishing this? Does it mean you'll be able to release audio tracks with all of Anakin's dialogue silenced, for other actors to give it a try?

It will involve going into the surround mixes and removing center channel containing Hayden plus other channels (as needed), replacing and synching the new voice, applying ambience to the new voice where necessary, and then adding the background sounds behind the new voice and smoothing the transitions in a seamless way.

I might do silenced audio tracks too, but the main focus is putting out the finished mixes and to have them synch perfectly with the official DVDs.