Leon Gast is an American documentary film director, producer, cinematographer, and editor.
 His documentary, "When We Were Kings" depicts the iconic heavyweight boxing match: The Rumble in the Jungle between Muhammad Ali and George Foreman.
 This film would go on to win the 1996 Academy Award for Documentary Feature and the Independent Spirit Award.
 Gast co-directed the 1977 documentary, "The Grateful Dead Movie" with guitarist Jerry Garcia.
 The film captured the band's October 1974, five-night performance at the Winterland Ballroom in San Francisco.
 Gast also co-directed the 1983 film "Hell's Angels Forever," which focused on the notorious motorcycle club Hells Angels.
 The Angels are believed to have learned that Gast put material in the documentary in which they didn't prefer.
 To this end, Gast claims that the Angels tracked him down and beat him up.
 Gast has also produced works on B.B. King and Celia Cruz.
Smash His Camera is a 2010 documentary film directed by filmmaker Leon Gast about the life and career of paparazzi photographer Ron Galella.
 The film won the "Directing Award Documentary" at the 2010 Sundance Film Festival and was released on 30 July 2010 through Magnolia Pictures, and was shown on HBO.
When We Were Kings is a 1996 Academy Award winning documentary film directed by Leon Gast about the famous "Rumble in the Jungle" heavyweight championship match between Muhammad Ali and George Foreman.
 The fight was held in Zaire (now the Democratic Republic of the Congo) on October 30, 1974.
Our Latin Thing (Spanish: Nuestra Cosa ) was a 1972 documentary film directed by Leon Gast about the burgeoning Latin music scene in New York City.
 It focused on a concert put together by the management of Fania Records at Manhattan's Cheetah nightclub featuring a group of Fania artists called the Fania All-Stars.
 The film was distributed by A&R Film Distributors headed by Alex Masucci, Fania Records founder Jerry Masucci's younger brother and subsequent Fania Records Vice President, and Ray Aviles.
Cassius Clay (soon Muhammad Ali) fought an eight-round boxing match with Texan Donnie Fleeman in Miami on February 21, 1961.
 Prior to this fight, Fleeman had a record of 51 fights with 45 wins including 20 knockouts.
 Clay won the bout through a technical knockout after the referee stopped the fight in the seventh round.
 This was the first time Clay had gone over six rounds in a boxing match.
 It was also the first time Fleeman had ever been knocked down in a boxing match.
 Fleeman retired from boxing after this fight.
Muhammad Ali and Zora Folley fought each other in a boxing match at Madison Square Garden in New York City on March 22, 1967.
Ali won the bout by knocking out Folley in the seventh round.This would be Ali's last boxing match before his suspension from boxing.
Cassius Clay (soon Muhammad Ali) fought Sonny Banks in a ten-round boxing match at Madison Square Garden in New York City on February 10, 1962.
 Clay won the fight through a technical knockout when the referee stopped the fight in the fourth round.
 The event is remembered for being the first professional boxing match in which Ali was officially knocked down in the ring by his boxing opponent.
The Rumble in the Jungle was a historic boxing event in Kinshasa, Zaire (now Democratic Republic of the Congo) on October 30, 1974 (at 4:00 am).
 Held at the 20th of May Stadium (now the Stade Tata Raphaël), it pitted the undefeated world heavyweight champion George Foreman against challenger Muhammad Ali, a former heavyweight champion; the attendance was 60,000.
 Ali won by knockout, putting Foreman down just before the end of the eighth round.
 It has been called "arguably the greatest sporting event of the 20th century".
 The event was one of Don King's first ventures as a professional boxing promoter.
Manny is a 2014 documentary directed by Leon Gast and Ryan Moore.
 It covers the life of professional boxer Manny Pacquiao, from his impoverished life as a young boy to his boxing glory to Philippine politics.
 The film is narrated by Liam Neeson.
 Additionally, interviews of friends, family members, and people associated with professional boxing, combined with archival footage of Pacquiao, were used throughout the movie.
 Notable appearances in the film include Oscar De La Hoya, Jimmy Kimmel, Jeremy Piven, and Mark Wahlberg.
Eric M. Gast (born 23 April 1968) is an American music industry professional - record producer, mixer, engineer, and recording studio designer - and founder and CEO of a nonprofit public health care charity.
 Gast was born in New Jersey and raised in New York City.
 He is cousin to documentary filmmaker Leon Gast.
 as well as another cousin Eric W. Gast former athlete and model

Question: In which city was the boxing match documented in "When We Were Kings", by Leon Gast, held?
Answer: Kinshasa, Zaire