Heath Ledger

Heathcliff Andrew Ledger (4 April 1979 – 22 January 2008) was an Australian actor and director. After performing roles in Australian television and film during the 1990s, Ledger left for the United States in 1998 to 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), Ned Kelly (2003), The Brothers Grimm (2005), Lords of Dogtown (2005), Brokeback Mountain (2005), Casanova (2005), Candy (2006), I'm Not There (2007), The Dark Knight (2008) and The Imaginarium of Doctor Parnassus (2009). He also produced and directed music videos and aspired to be a film director.

For his portrayal of Ennis Del Mar in Brokeback Mountain, Ledger won the New York Film Critics Circle Award for Best Actor and Best International Actor from the Australian Film Institute, and was nominated for the BAFTA Award for Best Actor in a Leading Role and for the Academy Award for Best Actor. Posthumously he shared the 2007 Independent Spirit Robert Altman Award with the rest of the ensemble cast, the director, and the casting director for the film I'm Not There, which was inspired by the life and songs of American singer-songwriter Bob Dylan. In the film, Ledger portrayed a fictional actor named Robbie Clark, one of six characters embodying aspects of Dylan's life and persona.

Jack Nicholson

John Joseph "Jack" Nicholson (born April 22, 1937) is an American actor and filmmaker, having performed for nearly 60 years. He is known for playing a wide range of starring or supporting roles, including satirical comedy, romance and dark portrayals of excitable and psychopathic characters. In many of his films he played the "eternal outsider, the sardonic drifter", and someone who rebels against the social structure.

Nicholson's 12 Academy Award nominations make him the most nominated male actor in the Academy's history. Nicholson has won the Academy Award for Best Actor twice, one for the drama One Flew Over the Cuckoo's Nest (1975) and the other for the romantic comedy As Good as It Gets (1997). He also won the Academy Award for Best Supporting Actor for the comedy-drama Terms of Endearment (1983). Nicholson is one of three male actors to win three Academy Awards.

Nicholson is one of only two actors to be nominated for an Academy Award for acting in every decade from the 1960s to the 2000s; the other is Michael Caine. He has won six Golden Globe Awards, and received the Kennedy Center Honor in 2001. In 1994, he became one of the youngest actors to be awarded the American Film Institute's Life Achievement Award.

Christopher Nolan

Christopher Edward Nolan (/ˈnoʊlən/; born 30 July 1970) is an English-American film director, screenwriter, and producer. He is one of the highest-grossing directors in history, and among the most successful and acclaimed filmmakers of the 21st century.

Having made his directorial debut with Following (1998), Nolan gained considerable attention for his second feature, Memento (2000). The acclaim of these independent films gave Nolan the opportunity to make the big-budget thriller Insomnia (2002), and the mystery drama The Prestige (2006). He found further popular and critical success with the The Dark Knight Trilogy (2005–2012), Inception (2010) and Interstellar (2014). His nine films have grossed over US$4.2 billion worldwide and garnered a total of 26 Oscar nominations and seven awards. Nolan has co-written several of his films with his brother, Jonathan Nolan, and runs the production company Syncopy Inc. with his wife Emma Thomas.

Nolan's films are rooted in philosophical, sociological and ethical concepts, exploring human morality, the construction of time, and the malleable nature of memory and personal identity. His body of work is permeated by metafictive elements, temporal shifts, solipsistic perspectives, nonlinear storytelling, practical special effects, and analogous relationships between visual language and narrative elements.