Emma Stone spilled the beans on the real Colin Firth when she dropped by The Late Show With David Letterman on Wednesday night to promote her new film, Magic in the Moonlight. "He's tricked us all into thinking that he is this charming, lovely fellow," Emma said. "And, he's a nightmare. A tool bag." Of course, Emma was being completely sarcastic (we hope) about Colin, but she got very earnest when she discussed her experiences with the paranormal in a different part of the show. She says that she has had metaphysical experiences with her late grandfather, whom she's never met. Listen to Emma's explanation below and hear her thoughts on Colin above.