Source: Hollywood Reporter

According to The Hollywood Reporter, Oscar-nominated actors Heath Ledger and Michelle Williams are joining the all-star cast of the Bob Dylan biopic I'M NOT THERE, written and directed by Todd Haynes.

Ledger, who replaces Colin Farrell, is in negotiations to be one of seven actors cast that will represent the different aspects of Dylan's life story and music.

Williams will play Coco Rivington, a model with whom an androgynous folk star -- played by the already cast Cate Blanchett -- is taken. Also cast are Christian Bale, Julianne Moore and Richard Gere.

The movie represents an onscreen reunion for Ledger and Williams, who were Oscar-nominated for their performances in Ang Lee's "Brokeback Mountain."