美国作家协会1971 Morgan Cox Award (获奖)1966 Valentine Davies Award (获奖)
Several of Leonard's plays reached Broadway, most notably "A Majority of One" in 1959. He also wrote "Climax" and "Playhouse 90" for television in addition to scripting eleven Academy Award shows. He authored a number of books including his collaboration on Edward G. Robinson's autobiography. During WWII he served as a colonel in the Army Signal Corps and edited "Army, Navy Screen Magazine."