Dickinson's big-screen breakthrough role came in Howard Hawks' "Rio Bravo" (1959), in which she played a flirtatious gambler called "Feathers" who becomes attracted to the town sheriff played by Dickinson's childhood idol John Wayne. The film co-starred Dean Martin, Ricky Nelson and Walter Brennan. When Hawks sold his personal contract with her to a major studio without her knowledge, she was unhappy. Dickinson nonetheless became one of the more prominent leading ladies of the next decade, beginning with "The Bramble Bush" with Richard Burton. She also took a supporting role in "Ocean's 11" (1960) with friends Sinatra and Martin.