Heh, unfortunately, I've been extremely sheltered. If my parents knew I'd watched certain movies, I'd be in big trouble for sure. I'll play an M-rated game once I transfer away from home though (never played an FPS for fear they'd walk in).
The "but it is a historical film" also worked nicely for the movie "Glory".
As for Pneumbra I am finally playing that. That name your own price deal is awesome. Been too busy playing Aquaria and World of Goo. Pretty good so far. Thought it was going to be similar to Myst by the images though. Glad it is the way it is.