His best role of all time.
http://www.youtube.com/watch?v=2TVooUHN7j4

Heath Ledger was an awesome Joker but Jack is always the best.
http://www.youtube.com/watch?v=dqAvubu70Yc

McMurphy thinks he can get out of doing work while in prison by pretending to be mad. His plan backfires when he is sent to a mental asylum. He tries to liven the place up a bit by playing card games and basketball with his fellow inmates, but the head nurse is after him at every turn. Written by Colin Tinto {cst@imdb.com}
http://www.imdb.com/title/tt0073486/

One of his best roles of all time. Great movie.
http://www.imdb.com/video/screenplay/vi2760573209/

Sixty-three year old Harry has a reputation for dating girls a third his age. Taking Marin, his latest belle, back to her beach house for the weekend he is taken aback when her mother Erica unexpectedly turns up. Suffering a heart attack while romancing Marin, Harry finds himself housebound with Erica his nurse and only companion. As they grudgingly get to know each other something starts to stir, though as the hospital doctor who treated him has taken a shine to Erica, Harry could have serious competition. Written by Jeremy Perkins {jwp@aber.ac.uk}
http://www.imdb.com/title/tt0337741/

New York City. Melvin Udall, a cranky, bigoted, obsessive-compulsive writer, finds his life turned upside down when neighboring gay artist Simon is hospitalized and his dog is entrusted to Melvin. In addition, Carol, the only waitress who will tolerate him, must leave work to care for her sick son, making it impossible for Melvin to eat breakfast. Written by Jon Reeves {jreeves@imdb.com}
http://www.imdb.com/title/tt0119822/

n this dramatic courtroom thriller, Lt. Daniel Kaffee, a Navy lawyer who has never seen the inside of the courtroom, defends two stubborn Marines who have been accused of murdering a colleague. Kaffee is known as being lazy and had arranged for a plea bargain. Downey's Aunt Ginny appoints Cmdr. Galloway to represent him. Also on the legal staff is Lt. Sam Weinberg. The team rounds up many facts and Kaffee is discovering that he is really cut out for trial work. The defense is originally based upon the fact that PFC Santiago, the victim, was given a "CODE RED". Santiago was basically a screw-up. At Gitmo, screw-ups aren't tolerated. Especially by Col. Nathan Jessup. In Cuba, Jessup and two senior officers try to give all the help they can, but Kaffee knows something's fishy. In the conclusion of the film, the fireworks are set off by a confrontation between Jessup and Kaffee. Written by Matt Curtolo {curt@epix.net}
http://www.imdb.com/title/tt0104257/

Underrated film. Highly recommend.
http://www.youtube.com/watch?v=6wtfNE4z6a8