The Big Short is a 2015 American biographical comedy-drama film directed and co-written by Adam McKay. It is based on the non-fiction 2010 book The Big Short: Inside the Doomsday Machine by Michael Lewis about the financial crisis of 2007–2008, which was triggered by the United States housing bubble. The film stars Christian Bale, Steve Carell, Ryan Gosling and Brad Pitt.
The film is noted for its unconventional means of delivering exposition on the nature of the financial instrumentsaround which the narrative is based: Margot Robbie, Anthony Bourdain, Selena Gomez, and Richard Thaler are featured in cameo appearances in which they explain concepts such as subprime mortgages and collateralized debt obligations directly to the audience. Gosling’s character also serves as the narrator and breaks the fourth wall throughout the film.