Locke starred as a bitter heiress who joins a traveling Wild West show in "Bronco Billy" (1980), her only film with Eastwood not to reach blockbuster status, though it still ranked among the annual box office top 25. "The New York Times" critic Janet Maslin noticed that "each of them works more delicately here than they have together previously." Locke cited "Bronco Billy" and "The Outlaw Josey Wales" as her favorites of the movies they made. The couple's final collaboration as performers was "Sudden Impact" (1983), the highest-grossing film in the "Dirty Harry" franchise, in which Locke played an artist with her own code of vigilante justice. Her fee was a reported $350,000.