Entertainment Tonight has debuted the first footage from the upcoming adaptation Gone Girl, ahead of the full trailer's debut on Monday, April 14. Ben Affleck stars as Nick Dunne, a happily married man whose world is turned upside down when his wife Amy (Rosamund Pike) goes missing on their fifth anniversary, with Nick emerging as the prime suspect in her disappearance. Take a look at the first footage from director David Fincher's adaptation of Gillian Flynn's novel, arriving in theaters nationwide October 3.