Douglas McGrath Director, Writer Toby Jones Truman Capote Actor Sandra Bullock Harper Lee Actor Daniel Craig Perry Smith Actor Peter Bogdanovich Bennett Cerf Actor Jeff Daniels Alvin Dewey Actor Hope Davis Slim Keith Actor Gwyneth Paltrow Kitty Dean Actor Isabella Rossellini Marella Agnelli Actor Juliet Stevenson Diana Vreeland Actor Sigourney Weaver Babe Paley Actor John Benjamin Hickey Jack Dunphy Actor Lee Pace Dick Hickock Actor Sidney Kimmel Producer Brad Simpson Producer Christine Vachon Producer John Wells Executive Producer Judy Becker Production Design Rachel Portman Original Music Bruno Delbonnel Cinematographer Camilla Toniolo Film Editing Ellen Lewis Casting Beth Sepko Casting Laura Ballinger Art Director Gene Serdena Set Decoration Ruth Myers Costume Design