Answer the following question: Information:  - Benito Pérez Galdós (May 10, 1843  January 4, 1920) was a Spanish realist novelist. Some authorities consider him second only to Cervantes in stature as a Spanish novelist. He was the leading literary figure in 19th century Spain.  - Gustavo Alatriste ( 1922 -- 2006 ) was a Mexican actor , director , and producer of films . He was married from 1961 through 1967 to the actress Silvia Pinal . They had one daughter , actress Viridiana Alatriste ( 1963 -- 1982 ) . He was married several other times , to actresses Ariadne Welter , and Sonia Infante -- the latter for 18 years ) and had more than 20 other children , most of them in Mexico city and Guadalajara . Multiple sons have his name . He began his career producing Luis Buñuel 's Viridiana ( 1961 ) , which starred his then - wife , actress Silvia Pinal . The film , considered one of the greatest in Cinema of Spain , was the first of three films by the trio . In the eighties , Alatriste was named vice president of the Mexican CANACINE film organization . Alatriste died of pancreatic cancer on 22 July 2006 in Houston , Texas , although it was not made public until July 25 , leading to confusion about the true date . La Crònica de hoy gives the date and time of death as Saturday , 22 July at 11:45pm , according to Alatriste 's ex-wife Sonia Infante . It was actually 11:45AM , according to medical records .  - Viridiana is a 1961 Spanish-Mexican film directed by Luis Buñuel and produced by Gustavo Alatriste. It is loosely based on "Halma", a novel by Benito Pérez Galdós.  - Silvia Pinal Hidalgo (born 12 September 1931) is a Mexican actress, producer and politician. She is one of the most recognized and versatile Mexican actresses worldwide. She is internationally known for having starred in a famous movie trilogy with the famed film director Luis Buñuel, highlighting the classic film "Viridiana" (1961).    Given the information above, choose from the list below the object entity that exhibits the relation 'occupation' with the subject 'gustavo alatriste'.  Choices: - actor  - actress  - film director  - literary  - novelist  - producer
Answer:
film director