WARSAW, Poland (AP) — Gene Gutowski, a Polish- American Holocaust survivor who was the producer of three films by director Roman Polanski in the 1960s and reunited with him decades later for the Oscarwinning Holocaust drama, “The Pianist,” has died. He was 90.

Gutowski’s son, Adam Bardach, told The Associated Press that his father died of pneumonia on Tuesday at a hospital in Warsaw.

The Gutowski-Polanski collaboration in the 1960s resulted in the 1965 psychological horror film “Repulsion,” starring French actress Catherine Deneuve, followed by “Cul-de-Sac” (1966) and “The Fearless Vampire Killers” (1967), films that brought Polanski to Hollywood.

Years later, Polanski credited Gutowski with launching his international career, calling him “one of the most important figures in my existence.”

Gutowski was the son of a cultured and assimilated Jewish family in eastern Poland, but saw his youth shattered by World War II and the loss of his family in the Holocaust.

Immediately after the war, he worked for U.S. military intelligence hunting Nazis in postwar Germany, and emigrated to the United States in 1947.

A talented artist and sculptor, Gutowski worked as a fashion illustrator in New York before he took up film production.