After investing all that time loading it, I think I would have felt obligated to watch the whole film! I used to use the laserdisc as a demo disc back in the laserdisc days. Can't see demoing this disc.
Joe, you can update your firmware by downloading the firmware, burning it to a CD and inserting it into your player. The instructions for the Sony BDP-S550 can be found HERE. They give instructions for checking your current firmware version first. Of course, if you feel uneasy about doing it...