Alden Ehrenreich discusses Rules Don't Apply and his character in the film, Frank, whom he calls driven, ambitious and disciplined. Alden also chats about the "kinship" that Frank develops with Howard Hughes (Warren Beatty), and the romantic relationship that strikes up between Frank and Marla (Lily Collins). He sheds light on the hard rules and regulations of the time, Howard's affection for banana nut ice cream, and why Lily was the right actress for her part.