Question: Who,  Irwin Winkler or Thuc Doan Nguyen,  is the producer or director of 50 motion pictures, dating back to 1967's "Double Trouble", starring what famous performer?
Context: Double Trouble is an Australian children's television series aired on the Nine Network and repeated on ABC3.  It was produced by the Central Australian Aboriginal Media Association.  Double Trouble is the remake of the 1984 American series starring former twin actresses Jean and Liz Sagal.  The program is currently being syndicated in the United States on Vibrant TV Network. Home of Strangers is the first feature film from writer and director Doan Nguyen.  The film was released at the Schonell Theatre, Brisbane, Australia, on 1 August 2009. Double Trouble is a 1915 American silent romantic comedy film written and directed by Christy Cabanne, produced by D.W. Griffith, and starring Douglas Fairbanks in one of his earliest motion pictures.  The film is based on the novel of the same name by Herbert Quick.  The plot, a variant on the theme of Jekyll and Hyde, revolves around a very shy, "effeminate" banker who acquires a second, rakish and flirtatious personality after receiving a blow on the head.  The film was a popular and critical success. At First Sight is a 1999 American romantic drama film starring Val Kilmer and Mira Sorvino, based on the essay "To See and Not See" in neurologist Oliver Sacks' book "An Anthropologist on Mars" and inspired by the true life story of Shirl Jennings.  The film was directed by Irwin Winkler and written by Steve Levitt. Viewtiful Joe: Double Trouble! , known in Japan as Viewtiful Joe: Scratch!  (ビューティフル ジョー スクラッチ！ , Byūtifuru Jō: Sukuracchi! )  , is a video game developed by Clover Studio and published by Capcom for the Nintendo DS.  It was released in 2005 in Japan and North America.  Capcom partnered with Nintendo to distribute the game in Europe and Australia in early 2006.  "Viewtiful Joe: Double Trouble!"  is the fourth game released in the "Viewtiful Joe" series.  The game's story opens on the set of director Captain Blue's new action movie in an amusement park called Movieland.  When a mysterious group of villains known as Madow steal the only copy of the film, the superhero Viewtiful Joe and his younger sister Jasmine quickly give chase. 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. The Net is a 1995 American cyber action thriller film directed by Irwin Winkler and starring Sandra Bullock, Jeremy Northam and Dennis Miller. Sidney Salkow (June 16, 1911 – October 18, 2000) was an American film director (more than 50 motion pictures), screenwriter, and television director. Thuc Doan Nguyen is a Los Angeles-based writer and producer.  She was born in Vietnam, and grew up in North Carolina and Southern Maryland.  She is a double major from The University of North Carolina at Chapel Hill in Public Policy Analysis (Environmental Policy) and Communication Studies and also holds a Master's Degree (MPA) obtained in Southern California.  Nguyen is the founder of "The Bitch Pack", a group dedicated to promoting female-driven screenplays through Twitter and other social media sites. 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".
Answer: Elvis Presley