***ONLY ON THE ULTIMATE EDITION****
Not on the extreme edition.
I heard of this a while ago, but I was not a member here then, so I'll post it in case there's anyone out there who hasn't heard of it yet.
On the menu screen, enter 82997 via your DVD player remote. That corresponds to Aug 29/97, or the "judgement day". The menu will morph, and allow you to play another version of the movie. Deleted scenes added in, and a different ending. It's pretty cool.