In addition to gracing the cover of the December issue of W, Katherine also sat down with reporter Lynn Hirschberg to record an internet video feature called "Screen Tests" for the style magazine.

During the interview, which was shot in black and white, she spoke about her start in acting, some of her previous roles and what it was like to play an alien in the sci-fi drama "Roswell". Heigl also discussed her new movie "Life As We Know It" which is currently in theaters and family life with daughter Naleigh.