Q. You work closely with your sister, Ilona, who produces your movies. I have a sister, and I’m not sure I could speak candidly with her about the ideas in the “Human Centipede” films.A. I totally understand what you mean. But my sister’s just as crazy as I am, I think. She always comes up with crazy ideas. Even my mother loves the films. She’s seen the first one and she loves it. I told her the story of the second one and she loved it.