Best movies that are oscar winners in writing (screenplay--based on material from another medium) category

Actors : Al Pacino, Diane Keaton, Marlon Brando, James Caan,
Directors : Francis Ford Coppola,

The aging patriarch of an organized crime dynasty transfers control of his clandestine empire to his reluctant son.

Actors : Roy Scheider, Gene Hackman, Fernando Rey, Tony Lo Bianco,
Directors : William Friedkin,

A pair of NYC cops in the Narcotics Bureau stumble onto a drug smuggling job with a French connection.

Actors : Dustin Hoffman, John McGiver, Jon Voight, Sylvia Miles,
Directors : John Schlesinger,

A naive hustler travels from Texas to New York to seek personal fortune but, in the process, finds himself a new friend.

Actors : Ellen Burstyn, Lee J. Cobb, Max von Sydow, Linda Blair,
Directors : William Friedkin,

When a teenage girl is possessed by a mysterious entity, her mother seeks the help of two priests to save her daughter.

Actors : Richard Burton, Gino Cervi, John Gielgud, Peter O'Toole,
Directors : Peter Glenville,

King Henry II of England comes to terms with his affection for his close friend and confidant Thomas à Becket, who finds his true honor by observing God's divine will rather than the king's.

Actors : Rosemary Murphy, Gregory Peck, Frank Overton, John Megna,
Directors : Robert Mulligan,

Atticus Finch, a lawyer in the Depression-era South, defends a black man against an undeserved rape charge, and his children against prejudice.

Actors : Sidney Poitier, Rod Steiger, Lee Grant, Warren Oates,
Directors : Norman Jewison,

An African American police detective is asked to investigate a murder in a racially hostile southern town.

Actors : Martin Balsam, Robert Redford, Dustin Hoffman, Jack Warden,
Directors : Alan J. Pakula,

"The Washington Post" reporters Bob Woodward and Carl Bernstein uncover the details of the Watergate scandal that leads to President Richard Nixon's resignation.

Actors : Geraldine Chaplin, Rod Steiger, Julie Christie, Omar Sharif,
Directors : David Lean,

The life of a Russian physician and poet who, although married to another, falls in love with a political activist's wife and experiences hardship during the First World War and then the October Revolution.

Actors : Burt Lancaster, Richard Widmark, Marlene Dietrich, Spencer Tracy,
Directors : Stanley Kramer,

In 1948, an American court in occupied Germany tries four Nazi judges for war crimes.

Actors : Vanessa Redgrave, Jason Robards, Maximilian Schell, Jane Fonda,
Directors : Fred Zinnemann,

At the behest of an old and dear friend, playwright Lillian Hellman undertakes a dangerous mission to smuggle funds into Nazi Germany.

Actors : Albert Finney, George Devine, Susannah York, Rachel Kempson,
Directors : Tony Richardson,

The romantic and chivalrous adventures of adopted bastard Tom Jones in 18th century England.

Actors : Burt Lancaster, Jean Simmons, Arthur Kennedy, Dean Jagger,
Directors : Richard Brooks,

A fast-talking traveling salesman with a charming, loquacious manner convinces a sincere evangelist that he can be an effective preacher for her cause.

Actors : Paul Scofield, Robert Shaw, Wendy Hiller, Leo McKern,
Directors : Fred Zinnemann,

The story of Thomas More, who stood up to King Henry VIII when the King rejected the Roman Catholic Church to obtain a divorce and remarriage.

Actors : Peter O'Toole, Anthony Hopkins, Katharine Hepburn, John Castle,
Directors : Anthony Harvey,

1183 A.D.: King Henry II's three sons all want to inherit the throne, but he won't commit to a choice. They and his wife variously plot to force him.