Ever wonder how you measure up to celebs? Sure, theyre rich and famous, but maybe you can look down at them. A new mirror with a ruler printed on it has come out, but instead of marking the height with numbers, it places celebrities in their proper slot. Well, it seems actors Robert deNiro and Cameron Diaz are equals and tennis superstar Venus Williams is bigger than Brad Pitt but maybe you can beat them all! The Friskys Catherine is the perfect Scarlett OHara (aka Vivien Leigh). Check the photographic proof, after the jump!