Question: Which industry did Leopoldo Torre Nilsson and Mark Sandrich both work in?

Context paragraphs:
El Hijo del crack: El Hijo del crack (meaning "Son of the Star") is a 1953 Argentine football drama film co-directed by Leopoldo Torre Nilsson and Leopoldo Torres Ríos and starring Armando Bo and Oscar Rovito.  The film, a tale of a dwindling professional football star and his son was released on December 15, 1953 in Normandie cinema in Buenos Aires.  The cast involved major professional football players of the time as Mario Boyé, Tucho Méndez and Ángel Labruna and journalists such as Fioravanti.  It is the last film in which Leopoldo Torres Ríos and Leopoldo Torre Nilsson (father and son) worked together.  The 77 minute film was produced by Sociedad Independiente Filmadora Argentina  (SIFA).

Mark Sandrich: Mark Sandrich (born Mark Rex Goldstein; October 26, 1900 – March 4, 1945) was an American film director, writer, and producer.

Pantalones cortos: Pantalones cortos (English: "Short pants") is a 1949 Argentine black-and-white film, directed by Leopoldo Torres Ríos and written by him and Leopoldo Torre Nilsson.  It was premiered on June 22, 1949.

The Hand in the Trap: The Hand in the Trap (Spanish: "La Mano en la trampa" ) is a 1961 Argentine film directed by Leopoldo Torre Nilsson, based on a novel by Beatriz Guido.  It was entered into the 1961 Cannes Film Festival, where it won the FIPRESCI Prize.

Summer Skin (film): Summer Skin (Spanish: "Piel de verano" ) is a 1961 Argentine film directed by Leopoldo Torre Nilsson.  The film was selected as the Argentine entry for the Best Foreign Language Film at the 34th Academy Awards, but was not accepted as a nominee.

The Female: Seventy Times Seven: The Female: Seventy Times Seven (Spanish: Setenta veces siete ) is a 1962 Argentine drama film directed by Leopoldo Torre Nilsson.  It was entered into the 1962 Cannes Film Festival.

Leopoldo Torre Nilsson: Leopoldo Torre Nilsson (5 May 1924 – 8 September 1978), also known as Leo Towers and as Babsy, was an Argentine film director, producer and screenwriter.

The Party Is Over: The Party Is Over (Spanish: "Fin de fiesta" ) is a 1960 Argentine drama film directed by Leopoldo Torre Nilsson.  It was entered into the 10th Berlin International Film Festival.  The film depicts the political corruption in Argentina in the 1930s, a period known as the Infamous Decade.

The Seven Madmen: The Seven Madmen (Spanish: "Los siete locos" , also known as The Revolution of the Seven Madmen) is a 1973 Argentine drama film directed by Leopoldo Torre Nilsson and starring Alfredo Alcón, Norma Aleandro and Héctor Alterio.  It was based on the novels "Los siete locos" ("The Seven Madmen") and "Los lanzallamas" ("The Flamethowers"), by Roberto Arlt.

Leopoldo Torres Ríos: Leopoldo Torres Ríos (27 December 1899 – 10 April 1960) was an Argentine film director and screenwriter.  His brother Carlos Torres Ríos was a notable cinematographer.  His son was the film director and screenwriter Leopoldo Torre Nilsson.

Supporting paragraphs: Leopoldo Torre Nilsson Mark Sandrich
Answer: film