How boring are these short shuttle flights getting that they'd rather be sitting around watching DVDs. An extended ISS tour I could understand, but these shuttle flights don't happen that often and I believe it's still pretty competitive to get on board. If it were me, I'd probably spend that time floating around doing back-flips or other stuff I couldn't do on earth. Hell, if they let me take someone's spot on the next trip, I'll buy them a copy of the DVD. They can watch it all they want down here while I'm bouncing off the walls in orbit.