If I ever made a movie, I'd put two different commentary tracks on the DVD. One would be filled with actor gossip, behind-the-scenes information, and technical specs put into layman's terms, because I (and probably lots of other people) find that stuff fascinating.
The other commentary would be someone going "WHO'S THAT GUY? WHAT'S HE DOING? IS THAT A KNIFE? OH MY GOD IS HE GONNA STAB THAT GIRL?!?" etc., etc., for two hours. That way, when you're feeling a bit lonely, you can put the movie on with commentary #2 and feel like you're watching it with that one friend who never understands what's going on.