Dennis Lehane is an American author. He has published more than a dozen novels; the first several were a series of mysteries featuring recurring characters, including A Drink Before the War. Four of his novels have been adapted into films of the same names: Clint Eastwood's Mystic River (2003), Martin Scorsese's Shutter Island (2010), and Gone Baby Gone (2007) and Live by Night (2016), both directed by Ben Affleck. His short story "Animal Rescue" was also adapted into the film The Drop, noted for being the final film role for actor James Gandolfini.

Gone Baby Gone is a 2007 American neo-noir crime thriller film directed by Ben Affleck in his directorial debut. Affleck co-wrote the screenplay with Aaron Stockard based on the 1998 novel of the same name by Dennis Lehane. The film stars Casey Affleck and Michelle Monaghan as two Boston private investigators hunting for a young girl abducted from her single mother's apartment in Dorchester. The supporting cast includes Morgan Freeman, Ed Harris, and Amy Ryan. It was the final film to be released by The Ladd Company before its closure.