For those who have played the game, this part (http://youtube.com/watch?v=0KiCNIJncIU&search=showdown%20of%20fate) got cut out of the American version of it. For those who just want to see an interesting action sequence, its pretty cool.

Edit: The subtitles translate roughly to this

Cloud - You are the reason I cannot awake from this nightmare, until you are defeated I can never be at peace.
Sephiroth - Then give into the darkness in your heart, let it consume you and make you whole.