The Omega Man (stylized as The Ωmega Man) is a 1971 American science fiction film directed by Boris Sagal and starring Charlton Heston.
 It was written by John William Corrington and Joyce Corrington, based on the 1954 novel "I Am Legend" by the American writer Richard Matheson.
 The film's producer, Walter Seltzer, went on to work with Heston again in the dystopian science fiction film "Soylent Green" in 1973.
Noah Strausser Speer Wyle ( ; born June 4, 1971) is an American film, television, and theatre actor.
 He is best known for his roles as Dr. John Carter in "ER" and as Tom Mason in "Falling Skies".
 He has also played Steve Jobs in the docudrama "Pirates of Silicon Valley" (1999), Dr. Kenneth Monnitoff in "Donnie Darko" (2001), and Flynn Carsen in "The Librarian" franchise.
 Wyle was named one of the "50 Most Beautiful People" by "People" magazine in 2001.
Donnie Darko is a 2001 American science fiction film written and directed by Richard Kelly.
 It stars Jake Gyllenhaal, Jena Malone, Drew Barrymore, James Duval, Mary McDonnell, Katharine Ross, Patrick Swayze, Noah Wyle, and Maggie Gyllenhaal.
 The film follows the adventures of the troubled title character as he seeks the meaning behind his doomsday-related visions.
The Invisible Boy (aka S.O.S Spaceship) is a 1957 American science fiction film from Metro-Goldwyn Mayer, produced by Nicholas Nayfack, directed by Herman Hoffman, and starring Richard Eyer and Philip Abbott.
 It is the second film appearance of Robby the Robot, the science fiction character who "stole the show" in "Forbidden Planet" (1956), also released by Metro-Goldwyn-Mayer.
 According to an implied, subtle back story in "The Invisible Boy", the robot is the same character as that in "Forbidden Planet," which is set in the 23rd century; Robby is brought back to the film's mid-20th century era by time travel.
Southland Tales is a 2006 science fiction comedy-drama thriller film and the second film written and directed by Richard Kelly.
 The title refers to the Southland, a name used by locals to refer to Southern California and Greater Los Angeles.
 Set in the then-near future of 2008, as part of an alternate history, the film is a portrait of Los Angeles, and a satiric commentary on the military–industrial complex and the infotainment industry.
 The film features an ensemble cast including Dwayne Johnson, Seann William Scott, Sarah Michelle Gellar, Mandy Moore, and Justin Timberlake.
 Original music was provided by Moby.
 The film is an international co-production of the United States, Germany and France.
Invaders from Mars is a 1986 science fiction horror film, directed by Tobe Hooper from a screenplay by Dan O'Bannon and Don Jakoby.
 It is a remake of the 1953 science fiction film "Invaders from Mars", and is a reworking of that film's screenplay by Richard Blake from an original story by John Tucker Battle.
 Its production was instigated by Wade Williams, millionaire exhibitor, science fiction film fan and sometime writer-producer-director, who had reissued the original film in 1978 after purchasing the copyright to the property.
 Elaborate creature and visual effects for this remake were supplied by Stan Winston and John Dykstra.
Planet of the Apes is a 2001 American science fiction film directed by Tim Burton and starring Mark Wahlberg, Tim Roth, Helena Bonham Carter, Michael Clarke Duncan, Paul Giamatti, and Estella Warren.
 The sixth film produced in the "Planet of the Apes" franchise, it was loosely adapted from Pierre Boulle's 1963 novel of the same name and the 1968 film version.
 It tells the story of astronaut Leo Davidson crash-landing on a planet inhabited by intelligent apes.
 The apes treat humans as slaves, but with the help of an ape named Ari, Leo starts a rebellion.
Leslie Perri (died 1970) was the pen name of Doris Marie Claire "Doë" Baumgardt, an American science fiction fan, writer, and illustrator.
 She was a member of the Futurians, the influential science fiction fan club.
 Through her Futurian connections, she also edited minor romance fiction magazines.
 Baumgardt was married to two fellow science fiction writers and Futurians, first to Frederik Pohl, later to Richard Wilson.
 She was also married to Thomas Llewellyn Owens, an American painter.
 She had two children, Margot Owens, with Owens, and Richard David Wilson with Wilson.
 She became a reporter and journalist while married to Wilson.
 Wilson was, at the time, the bureau chief for the Reuters wire service in New York City.
 He left Reuters and went on to Syracuse University, where he founded a science fiction works collection said to be one of the most important in the world.
 Her grandson, Dirk Llewellyn van der Meulen, is named for "Dirk Wylie" (Harry Dockweiler) the science fiction poet and member of the Futurians.
Vanilla Sky is a 2001 American science fiction psychological thriller film directed, written, and co-produced by Cameron Crowe.
 It is an English-language adaptation of Alejandro Amenábar's 1997 Spanish film "Open Your Eyes", which was written by Amenábar and Mateo Gil, with Penélope Cruz reprising her role from the original film.
 The film has been described as "an odd mixture of science fiction, romance and reality warp".
James Richard Kelly (born March 28, 1975), better known as Richard Kelly, is an American film director and writer, known for writing and directing the cult classic "Donnie Darko" in 2001.

Question: The 2001 American science fiction film written by Richard Kelly casted what lead character?
Answer: Dr. Kenneth Monnitoff