Question: Who has produced or directed more films, Jim Mendiola or Irwin Winkler?
Context: Margo Winkler (born c. 1935) is an American actress, who often played minor roles as receptionists, clerks or judges.  She is known for her minor roles in several of Martin Scorsese's films which her husband Irwin Winkler produced.  She is best known for her roles in "Goodfellas" (1990) as Belle Kessler and as the receptionist in "The King of Comedy" (1983) whom Robert De Niro's character approaches on numerous occasions.  She is also known for her role as Barbara in "Life as a House" (2001).  She made her screen debut in 1970 in Stuart Hagmann's "The Strawberry Statement".  In 1999 she appeared in her son Charles Winkler's picture "Rocky Marciano", and her last appearance was in 2006 in her husband Irwin Winkler's "Home of the Brave" as a waiting room mother. Jim Mendiola (born in San Antonio, Texas, U.S.) is a Los Angeles based writer/director.  His award-winning film "Pretty Vacant" (33 min., 16mm, 1996), about a Sex Pistols obsessed Chicana punk rocker, has screened in numerous film festivals, museums, and colleges in the U.S. and Mexico, including South By Southwest (Best Narrative Short), the Havana International Film Festival, and the Guggenheim Museum. The Net 2.0 is a 2006 direct-to-video mystery thriller film written and produced by Rob Cowan and directed by Charles Winkler.  It is nominally a sequel to the 1995 film "The Net" directed by his father Irwin Winkler, but has a separate and unrelated plot.  The story concerns a computer systems analyst who finds herself in a web of identity theft, robbery, and murder when she lands in Turkey for a new job. Charles Winkler is an American television and film director and producer.  He is the son of Academy Award-winning producer and director Irwin Winkler and actress Margo Winkler and the husband of Sandra Nelson. Uncle Joe Shannon is a 1978 American drama film directed by Joseph Hanwright and written by Burt Young, who also stars.  The film was produced by Robert Chartoff and Irwin Winkler and distributed by United Artists. Irwin Winkler (born May 25, 1931) is an American film producer and director.  He is the producer or director of 50 motion pictures, dating back to 1967's "Double Trouble", starring Elvis Presley.  The fourth film he produced, "They Shoot Horses, Don't They? " (1969), starring Jane Fonda, was nominated for nine Academy Awards.  He won an Oscar for Best Picture for 1976's "Rocky".  As a producer, he has been nominated for Best Picture for three other films: "Raging Bull", "The Right Stuff", and "Goodfellas". Life as a House is a 2001 American drama film produced and directed by Irwin Winkler.  The screenplay by Mark Andrus focuses on a man who is anxious to repair his relationship with his ex-wife and teenaged son after he is diagnosed with terminal cancer. Believe in Me is a 1971 American romantic drama film directed by Stuart Hagmann and written by Israel Horovitz.  The film was produced by Robert Chartoff and Irwin Winkler. The Mechanic is a 1972 American action thriller film directed by Michael Winner, produced by Irwin Winkler and Robert Chartoff, and written by Lewis John Carlino.  The film follows Arthur Bishop (Charles Bronson), a top assassin who works for a secret organisation and takes under him Steve McKenna, the ruthless and ambitious son of the organisation's head Harry McKenna, also known as "The Big" that Bishop killed.  Bishop then reveals that although that he is his protégé, he must face against McKenna who seeks revenge on his father's death. Raging Bull is a 1980 American biographical black-and-white sports drama film directed by Martin Scorsese, produced by Robert Chartoff and Irwin Winkler and adapted by Paul Schrader and Mardik Martin from Jake LaMotta's memoir "".  It stars Robert De Niro as Jake LaMotta, an Italian American middleweight boxer whose self-destructive and obsessive rage, sexual jealousy, and animalistic appetite destroyed his relationship with his wife and family.  Also featured in the film are Joe Pesci as Joey, LaMotta's well-intentioned brother and manager who tries to help Jake battle his inner demons, and Cathy Moriarty as his wife.  The film features supporting roles from Nicholas Colasanto, Theresa Saldana, and Frank Vincent.
Answer: Irwin Winkler