Improvising a maze with materials on hand
As you can see, the first frame of the video displays almost immediately--but then when you click the play button nothing happens? Check the status bar at the bottom of the window and you'll see a running update on the dowload progress, e.g., 10% of 510K (at 2.7K/sec, 1:49 remaining).
This is going to take a long time! Be sure to take a look at the RealVideo examples (embedded or external RealPlayer G2) of these same sample clips for an interesting comparison!
This QuickTime 3.0 video could easily have been produced with far better quality that what you're seeing here--but then it would have taken up to twice as long to download.