Alejandro Maximino
Alejandro Maximino was an Argentine actor.
His last film was the 1962 film" Una Jaula no tiene secretos".
Duccio Tessari
Duccio Tessari (11 October 1926 – 6 September 1994) was an Italian director, screenwriter and actor, considered one of the fathers of spaghetti westerns.
Born in Genoa, Tessari started in the fifties as documentarist and as screenwriter of peplum films.
In 1964 he co-wrote Sergio Leone's "A Fistful of Dollars", one year later he gained an impressive commercial success and launched the Giuliano Gemma's career with "A Pistol for Ringo" and its immediate sequel, "The Return of Ringo".
He later touched different genres and worked in RAI TV, directing some successful TV-series.
He died of cancer in Rome, at 68.
He was married to actress Lorella De Luca.
Pablo Moret
Pablo Moret( born June 2, 1933) was an Argentine actor.
He starred in the 1962 film" Una Jaula no tiene secretos".
The Bloodstained Butterfly
The Bloodstained Butterfly  is a 1971 "giallo" film directed by Duccio Tessari.
It was distributed in West Germany as "Das Geheimnis der Schwarzen RoseSecret of the Black Rose") which was the name of the Edgar Wallace story on which the film was based.
It starred Helmut Berger and Ida Galli.
Luis Rodrigo
Luis Rodrigo was an Argentine actor.
He starred in the 1962 film" Una Jaula no tiene secretos".
Nathán Pinzón
Nathán Pinzón( 1917–1993) was an Argentine actor.
He starred in the 1962 film" Una Jaula no tiene secretos".
Cacho Espíndola
Cacho Espíndola (1940 – August 21, 2004) was an Argentine actor.
He starred in the 1962 film "Una Jaula no tiene secretos".
Edmundo Sanders
Edmundo Sanders was an Argentine speaker and actor.
He starred in the 1962 film" Una Jaula no tiene secretos".
Carlos Pamplona
Carlos Pamplona was an Argentine actor.
He starred in the 1962 film" Una Jaula no tiene secretos".
Lidia Ravera
Lidia Ravera( born 6 February 1951 in Turin, Piedmont) is an Italian writer, journalist, essayist and screenwriter.
Ravera has been a regular contributor to the italian edition of" Cosmopolitan".
Her most popular novel," Porci con le ali" Winged Pigs), dealt with the disillusionment of her generation with the ideals of the late 1960s.
In 1977 Ravera wrote a film adaptation of the book.

Question: Why did the director of film The Bloodstained Butterfly die?
Answer: cancer