Michelle Williams, who went through a transformation to play Marilyn Monroe in 'My Week with Marilyn', has said that "it felt like being reborn" while preparing for the role.

To play the screen icon, the 31-year-old spent six months immersing herself in all things Monroe. She read biographies, diaries, letters, poems and notes, pored over photographs, listened to recordings, watched movies and tracked down obscure clips on YouTube. "I'd go to bed every night with a stack of books next to me," News.com.au quoted her as saying.