LOS ANGELES (Reuters) – Joseph Gordon-Levitt has come a long way from his television days playing a disguised extraterrestrial stranded on Earth, harnessing a chameleon-like ability to inhabit a variety of roles in independent films and big-budget blockbusters. The actor, who gained fame on TV show "3rd Rock From the Sun," portrays Gotham police officer John Blake in Friday's "The Dark Knight Rises," the eagerly anticipated final installment of director Christopher Nolan's "Batman" trilogy. …