Gillian Schieber Flynn is an American author, screenwriter, and producer. She is known for writing the thriller and mystery novels Sharp Objects (2006), Dark Places (2009), and Gone Girl (2012), which are all critically acclaimed. Her books have been published in 40 languages, and according to The Washington Post, as of 2016 Gone Girl alone has sold more than 15 million copies.

Gone Girl is a 2014 American psychological thriller directed by David Fincher and written by Gillian Flynn, based on her 2012 novel of the same name. It stars Ben Affleck, Rosamund Pike, Neil Patrick Harris, Tyler Perry, and Carrie Coon in her film debut. In the film, Nick Dunne (Affleck) becomes the prime suspect in the sudden disappearance of his wife, Amy (Pike) in Missouri.