The David Fincher film featuring Amy Elliott-Dunne is Gone Girl.
Amy Elliott-Dunne, usually known as Amy Dunne, is the central character in Fincher's 2014 psychological thriller. Rosamund Pike portrays Amy, who disappears from her Missouri home on her fifth wedding anniversary, turning her husband Nick into the focus of a police investigation and a voracious media storm.
The film was adapted by Gillian Flynn from her 2012 novel Gone Girl. Flynn also wrote the screenplay, preserving the story's shifting viewpoints and its exploration of marriage, public image, manipulation, and media judgment. Amy's identity as the inspiration for the children's Amazing Amy books is an important part of her backstory and helps explain the gap between her polished public image and her private ambitions.
The character's name is sometimes written imprecisely as “Amy Elliott-Dunne.” In the film and novel, her full name is generally rendered Amy Elliot Dunne, while “Elliot” is also associated with her maiden identity. Another common mix-up is attributing the character to Fincher's other thrillers, such as Panic Room or The Girl with the Dragon Tattoo; neither features Amy Dunne. Pike received an Academy Award nomination for the role.