Thanks for all your votes, guys!
Second choice would be Pirate radio, especially if you have music lovers in the crowd - although the film is really not as good as its subject demands.
Sadly, the 2 friends I have who are really hardcore lovers of classic rock were both unable to attend. I was kinda leaning towards a discount theater showing of The Invention of Lying.
However, I got a better offer: My friend agreed to let me teach him how to play "Star Wars: Epic Duels."