Next thing, Ritt became a famous television director after an already successful career in theater. His connections and friendliness with the leftist movement and his keen with some Marxist principles got him, essentially, blacklisted. He was mentioned in an anti-communist letter published by a group made of former FBI agents called Counterattack. So, Martin returned theater for a little bit but in 1956, he turned into film and overall directed more than 25 films.
In the 1970s, Ritt received acclaim for a lot of his movies, including Norma Rae. He won the Technical Grand Prize at the Cannes Film Festival for Norma Rae. Martin Ritt died at 76 in California, in 1990.
Fun fact: Actress Sally Field (who got an Oscar for Norma Rae) starred in his last three movies.