Just to be accurate, SW Ep 1 was the first movie ANNOUNCED to have DD EX. Something else actually came out first.

As we've said before, cope, you need to MANUALLY put your receiver into EX mode for many movies, esp older DVDs. Trust me, both SW films are EX encoded. Please see my post of 1/26/04 above. A "direct" signal implies discrete processing, which is only available with certain DTS DVDs. Nevertheless, EX and ES matrix do have a separate 6th channel that is encoded out of phase in the 4th and 5th channels and is extracted by the same means used to derive the front center channel in Pro Logic II or DTS Neo6 respectively.