He died of pneumonia, Loomis said.
Bernstein was best known for being blacklisted during the Hollywood “Red Scare” of the 1950s Caught in the anti-communist movement punctuated by Senator Joseph McCarthy’s notorious accusations against the US State Department, Bernstein wrote under pseudonyms for years.
He also published with the help of friends and associates known as “fronts”, who listed their names as the alleged authors of Bernstein’s work.
She reappeared as the screenwriter for the 1959 film “That Kind of Woman,” starring Sophia Loren as Sidney Lumet.
Returning to his career, Bernstein’s work during the 1960s and 70s included “Fail Safe”, “Paris Blues”, “The Molly Maguires” and “Yanks”. Bernstein also worked on “Something’s Got to Give”, the unfortunate image of Marilyn Monroe that was never completed due to her death in August 1962.
He won an Oscar nomination for Best Original Screenplay for “The Front,” a 1976 film with Woody Allen that satirized the impact of the McCarthyism era on writers in the industry.
In 1997, Bernstein was nominated for an Emmy Award for “Miss Evers’ Boys,” an HBO film about the infamous Tuskegee Syphilis Experiment.
Prior to his screenwriting success, Bernstein attended Dartmouth College, served in World War II as a correspondent for the military newspaper Yank, and wrote for The New Yorker.
Bernstein had been a longtime member of the Writers Guild of America, East, which named an award after him in 2017 to “honor writers who have demonstrated with creativity, grace, and courage the desire to deal with social injustice in the face of adversity. “