I always felt like it belonged in the movie too, until I saw the footage on the DVD. There are a number of scenes in it which really don't relate at all to the rest of the movie. Additionally, the job it does (describing the isolation and madness behind the wall) is already done so well by Is There Anybody Out There?, and Nobody Home. It really wasn't necessary. And most of the footage was spliced into the visuals during the tearing down of the wall anyway.