The sci-fi movies I grew up with, the metaphor was very rich, and they used to really mean something: David Cronenberg's films, or John Carpenter's films, or the Phil Kaufman and Don Segel versions of 'Invasion Of The Body Snatchers,' or George Romero's early zombie films.

I grew up believing my sister was from the planet Neptune and had been sent down to Earth to kill me. I believed this because my sister Emily convinced me of it when I was a toddler. I think she'd seen Invasion of the Body Snatchers and her imagination ran away with her. There's a part of me that still believes it.