Directed by Tom George , this is a meta-comedic whodunit set in . The plot centers on a world-weary inspector and a rookie constable investigating the murder of a Hollywood director who was trying to adapt a popular stage play into a film . Stars : Saoirse Ronan , Sam Rockwell, and Adrien Brody .

: Critics generally praised the film for its witty humor and the chemistry between Ronan and Rockwell, though some found the "meta" elements overshadowed the central mystery . Technical Details of the Title

: Much of the film parodies the tropes of Agatha Christie's murder mysteries, specifically her long-running play The Mousetrap .