Anne Hathaway has injured her arm, but kept up a brave face as she was pictured attending a lunch date with her arm in a cast. The injury follows the Devil Wears Prada beauty having all her hair cut off for her role in the new film adaptation of Les Miserables. The actress stars as Fantine in the film, directed by The King\'s Speech filmmaker Tom Hooper. Anne is seen singing I Dreamed A Dream in a new trailer for the movie, which has gone online. French factory worker Fantine has to sell her hair and become a prostitute in the musical story. The brief clip, set in a bleak backdrop of early 19th Century France, also features Hugh Jackman, Amanda Seyfried, Russell Crowe and Eddie Redmayne. The star cast of the film, adapted from the hit stage show, also includes Sacha Baron Cohen and Helena Bonham Carter.