As one of six actors embodying different aspects of the life of Bob Dylan in the 2007 film I'm Not There, directed by Todd Haynes, Ledger "won praise for his portrayal of 'Robbie ,' a moody, counter-culture actor who represents the romanticist side of Dylan, but says accolades are never his motivation".
Som en ud af seks skuespillere der spiller forskellige aspekter af Bob Dylans liv i filmen 2007 I'm Not There, instrueret af Todd Haynes, vandt Ledger "ros for sin skildring af 'Robbie ', en humørsyg, kultur skuespiller, der repræsenterer den romansistiske side Dylan, men siger, at anerkendelser aldrig har været hans motivation" .