MY GOD, THERE ARE SO MANY OF YOU WHO CAN'T...
My god, there are so many of you who can't get beyond the "Hey You," thing. First of all, THERE WERE PEOPLE IN THE MOVIE WHO KNEW THE SONG, and knew WALT didn't write it. PLUS, he was found-out!!!
Do you all hate science fiction movies because you can't get beyond the fact that we really don't have a way to get people to Mars, yet? I went to graduate school when the song came out, and I guarantee you that some of the people I knew there never heard of Pink Floyd, or ever listened to that song. Get over it. Those people exist!!!!!!!