Why? Simple self-promotion? For fun? Sheer ego? “Because no one else can?” To wrest back the measure of control which a solitary typist enjoys? Is it fear of living merely a life of the mind? The need to act out a fantasy? Or is it a public therapy, an exorcism of demons? Typically an author’s on-screen role in an adaptation is that of a background artist: blink and you’ll miss Kurt Vonnegut (a pedestrian in Mother Night), Amy Tan (a house partier in The Joy Luck Club), Chuck Palahniuk (an airline passenger in Choke), or John le Carré (a […]