The Devil Wears Prada star Emily Blunt cured her "disabling" speech impediment by taking up acting. The 24-year-old suffered from a stammer when she was younger and blames her speech problems for her lack of self-confidence at school. But she's pleased she finally managed to overcome the problem. She says, "I had a stammer, which was hard, but I used to act in school plays to help me escape from what I saw as a disabling difficulty. "Really, I think I retreated into myself a bit as not to stand out."