You can stream the 1969 documentary feature The Olympics in Mexico / Olimpiada en México by director Alberto Isaac, which was nominated for Best Documentary Feature at the 42nd Annual Academy Awards.
Alberto Isaac Ahumada aka "El Güero" (1923-1998) was an accomplished Mexican swimmer who participated at the 1948 and 1952 Olympics, and later in life became a noted filmmaker, directing 15 feature films, which earned 44 Ariel Awards and won 11. He also became the first director of the Mexican Film Institute, Instituto Mexicano de Cinematografía (IMCINE) between 1983 and 1985.
Isaac's film documents the XIX Olympic Summer Games which were held in Mexico City, the first time that a Latin American country and a Spanish-speaking country ever hosted the Olympics. Financed by the Olympic Committee, the film was a big production using 81 cameras and a crew of 412 members from eight different countries. The film was distributed in three different formats in 70, 35 and 16mm.
Isaac worked with noted Mexican filmmakers Felipe Cazals, Paul Leduc and Rafael Corkidi, the musical score was composed by Joaquín Gutiérrez Heras, and the film was narrated by Enrique Lizalde and Roberto Morales.
Watch it here: