Jake Gyllenhaal In "Proof", featuring Gwyneth Paltrow and Anthony Hopkins, Gyllenhaal played a graduate student in mathematics who tries to convince Paltrow's character to publish a revolutionary proof to a problem puzzling the mathematicians' community. In "Jarhead", Gyllenhaal played a violent U.S. Marine during the first Gulf War. He also auditioned to be Batman for the blockbuster "Batman Begins" and came close to getting the role, but Christian Bale was ultimately chosen for it. In "Brokeback Mountain", Gyllenhaal and Heath Ledger play young men who meet as sheep herders and embark upon a sexual relationship that begins in the summer of 1963
Heath Ledger using computer-generated imagery (CGI), and dedicated it to Ledger. In February 2008, as a "memorial tribute to the man many have called one of the best actors of his generation," Johnny Depp, Jude Law, and Colin Farrell signed on to take over Ledger's role, becoming multiple incarnations of his character, Tony, transformed in this "magical re-telling of the Faust story". The three actors donated their fees for the film to Ledger's and Williams's daughter. Speaking of editing "The Dark Knight," on which Ledger had completed his work in October 2007, Nolan recalled, "It was tremendously emotional, right when he passed,