Occasionally, a con will set up a little room where they'll just throw on movies or TV shows to watch. Or they'll get real organized and have screenings. Now, if you have a chance to see a 35mm film print of "Blade Runner," or original sci-fi films from the festival circuit, then pencil it in.

If they've just decided to throw the "Firefly" DVD set into a player and set it on repeat, you can probably give it a miss.

You may be tempted to hit up "The Rocky Horror Picture Show" if they're doing it with a performing cast. But stop to think. You came to a convention to experience con-specific things. "Rocky Horror" has been going on every Saturday night since the seventies. Chances are you stood behind your local Dr. Frank-N-Furter in the line to meet the little dude who was inside R2-D2.