Heath Ledger Heath Ledger Heath Andrew Ledger (4 April 197922 January 2008) was an Australian actor and director. After performing roles in several Australian television and film productions during the 1990s, Ledger left for the United States in 1998 to further develop his film career. His work comprised nineteen films, including "10 Things I Hate About You" (1999), "The Patriot" (2000), "A Knight's Tale" (2001), "Monster's Ball" (2001), "Lords of Dogtown" (2005), "Brokeback Mountain" (2005), "Casanova" (2005), "The Dark Knight" (2008), and "The Imaginarium of Doctor Parnassus" (2009), the latter two being posthumous releases. He also produced and directed music videos and
Proof (2005 film) called "Proof": "richer and deeper, simultaneously both funnier and more serious, than either "A Beautiful Mind" or "Good Will Hunting"." Timothy Gowers of the University of Cambridge, a Fields Medalist, and Paul Sally of the University of Chicago, acted as mathematical consultants, although the latter was dismissive of the film's mathematical relevance and accuracy. Proof (2005 film) Proof is a 2005 American drama film directed by John Madden and starring Gwyneth Paltrow, Anthony Hopkins, Jake Gyllenhaal, and Hope Davis. It was written by Rebecca Miller, based on David Auburn's Pulitzer Prize-winning play "Proof". The plot alternates between events immediately following