Premise: Robert Selden Duvall ( [ duːˈvɔːl ] born January 5 , 1931 ) is an American actor and filmmaker . To Kill a Mockingbird (film) . To Kill a Mockingbird marked the film debuts of Robert Duvall , William Windom , and Alice Ghostley . William Windom ( September 28 , 1923 -- August 16 , 2012 ) was an American actor .
Hypothesis: To Kill a Mockingbird (film) was the film debut of an actor and filmmaker.
Label: ENTAILMENT