One of the most famous examples of a flashback is in the Orson Welles' film "Citizen Kane" (1941). The protagonist, Charles Foster Kane, dies at the beginning, uttering the word "Rosebud". The remainder of the film is framed by a reporter's interviewing Kane's friends and associates, in a futile effort to discover what the word meant to Kane. As the interviews proceed, pieces of Kane's life unfold in flashback, but Welles' use of such unconventional flashbacks was thought to have been influenced by William K. Howard's "The Power and the Glory". Lubitsch used a flashback in "Heaven Can Wait" (1943) which tells the story of Henry Van Cleve. Though usually used to clarify plot or backstory, flashbacks can also act as an unreliable narrator. The multiple and contradictory staged reconstructions of a crime in Errol Morris's 1988 documentary "The Thin Blue Line" are presented as flashbacks based on divergent testimony. Akira Kurosawa's 1950 "Rashomon" does this in the most celebrated fictional use of contested multiple testimonies.