Duncan Jones cut his teeth on the sets of Labyrinth and The Hunger, but for his directorial debut, he opted for something that didn't star his dad (I'll let you guys and girls mull over the common thread).

Rather, Moon is a showcase for star Sam Rockwell, who gives what is surely one of the year's more uniquely layered performances. As the film opens today in NY and LA before rolling out in the weeks to come, Jones spoke with Cinematical about shooting sci-fi on a small budget, releasing an indie in a season of blockbusters, and cracking his skull out of pure giddiness for a movie.

Which one, you ask? We'll tell you after the jump...