12 movie transformations that'll make you do a double take By Breeanna Hare, CNN September 28, 2012 -- Updated 1545 GMT (2345 HKT) Joseph Gordon-Levitt in 'Looper' Meryl Streep in 'The Iron Lady' Robert Downey Jr. in 'Tropic Thunder' Nicole Kidman in 'The Hours' Brad Pitt in 'The Curious Case of Benjamin Button' Charlize Theron in 'Monster' Heath Ledger in 'The Dark Knight' Rooney Mara in 'The Girl With the Dragon Tattoo' Marion Cotillard in 'La Vie en Rose' Eddie Murphy in 'Coming to America' Julianne Moore in 'Game Change' Eric Stoltz in 'Mask'