Trivia

Nephew of Columbia Pictures founder Harry Cohn and Nat Cohn

Son of Jack Cohn

Younger brother of Ralph Cohn.

Of the producers and studio executives in the Cohn family, Robert was the first to live past age 67 (his brother Ralph died at age 45 in 1959, his father Jack died at age 67 in 1956, and his uncle Harry died at age 66 in 1958).