Question: What director of "Cry Uncle!" also directed a movie starring Sylvester Stallone?
Context: Rocky III is a 1982 American sports drama film written, directed by, and starring Sylvester Stallone.  It is the third installment in the "Rocky" film series, and the second in the franchise to be directed by Stallone. Over the Top is a 1987 American sport drama film starring Sylvester Stallone.  It was produced and directed by Menahem Golan, and its screenplay was written by Stirling Silliphant and Stallone.  The original music score was composed by Giorgio Moroder.  The main character, played by Stallone, is a long-haul truck driver who tries to win back his alienated son while becoming a champion arm wrestler. Driven is a 2001 action drama film directed by Renny Harlin and starring Sylvester Stallone, who also wrote and produced.  It centers on a young racing driver's effort to win the Champ Car World Series auto racing championship.  Prior to production, Stallone was seen at many Formula One races, but he was unable to procure enough information about the category due to the secrecy with which teams protect their cars, so he decided to base the film on Champ Car. Rocky V is a 1990 American sports drama film.  It is the fifth film in the "Rocky" series, written by and starring Sylvester Stallone, and co-starring Talia Shire, Stallone's real-life son Sage, and real-life boxer Tommy Morrison, with Morrison in the role of Tommy Gunn, a talented yet raw boxer.  Sage played Robert Balboa, whose relationship with his famous father is explored.  After Stallone directed the second through fourth films in the series, "Rocky V" saw the return of John G. Avildsen, whose direction of "Rocky" won him an Academy Award for Best Directing. Rocky Balboa also known as Rocky VI is a 2006 American sports drama film written, directed by, and starring Sylvester Stallone.  The film, which features Stallone as underdog boxer Rocky Balboa, is the sixth film in the "Rocky" series that began with the Academy Award-winning "Rocky" thirty years earlier in 1976.  The film portrays an aging Balboa in retirement, a widower living in Philadelphia, and the owner and operator of a local Italian restaurant called "Adrian's," named after his late wife. Rocky is a 1976 American sports drama film directed by John G. Avildsen and both written by and starring Sylvester Stallone.  It tells the rags to riches American Dream story of Rocky Balboa, an uneducated but kind-hearted working class Italian-American boxer working as a debt collector for a loan shark in the slums of Philadelphia.  Rocky starts out as a small-time club fighter, and later gets a shot at the world heavyweight championship.  The film also stars Talia Shire as Adrian, Burt Young as Adrian's brother Paulie, Burgess Meredith as Rocky's trainer Mickey Goldmill, and Carl Weathers as the champion, Apollo Creed. Cop Land is a 1997 American crime drama film written and directed by James Mangold, and starring Sylvester Stallone, Harvey Keitel, Ray Liotta, and Robert De Niro.  The supporting cast features Peter Berg, Janeane Garofalo, Robert Patrick, Michael Rapaport, Annabella Sciorra, Cathy Moriarty, Arthur Nascarella, and John Spencer.  The story follows a sheriff (Stallone) in a small New Jersey town inhabited and dominated by corrupt New York City cops.  Their corruption grows until he can no longer allow himself to stand by and do nothing. Cry Uncle! , released in the UK as Superdick (theatrical title) and American Oddballs (video title), is a 1971 film in the Troma library.  It is directed by John G. Avildsen and stars Allen Garfield.  The story, based on the Michael Brett novel "Lie a Little, Die a Little", follows the misadventures of a slobbish private detective who is hired by a millionaire to investigate a murder.  The movie features one of Paul Sorvino's first screen performances, and an early appearance from TV star Debbi Morgan.  Avildsen directed this film six years prior to his Oscar-winning project Rocky. Escape Plan (formerly known as Exit Plan and The Tomb) is a 2013 American action thriller film starring Sylvester Stallone and Arnold Schwarzenegger, and co-starring Jim Caviezel, 50 Cent, Vinnie Jones, Vincent D'Onofrio and Amy Ryan.  Directed by Swedish filmmaker Mikael Håfström, and written by Miles Chapman and Jason Keller (under the anagram pen-name 'Arnell Jesko'). , the first film to pair up action film icons Stallone and Schwarzenegger as co-leads follows Stallone's character Ray Breslin, a structural engineer who is incarcerated in the world's most secret and secure prison, aided in his escape by fellow inmate Emil Rottmayer (Schwarzenegger). Rambo: First Blood Part II (also known as Rambo II or First Blood II) is a 1985 American action film directed by George P. Cosmatos and starring Sylvester Stallone, who reprises his role as Vietnam veteran John Rambo.  It is the sequel to the 1982 film "First Blood", and the second installment in the "Rambo" film series.  Picking up where the first film left, the sequel is set in the context of the Vietnam War POW/MIA issue; it sees Rambo released from prison by federal order to document the possible existence of POWs in Vietnam, under the belief that he will find nothing, thus enabling the government to sweep the issue under the rug.  In addition to Stallone, Richard Crenna reprises his role as Col. Samuel Trautman, with Charles Napier, Steven Berkoff, Julia Nickson, Martin Kove, George Cheung, and Andy Wood also included in the cast.
Answer: John G. Avildsen