You Can Count on Me is a 2000 American drama film written and directed by Kenneth Lonergan in his feature directorial debut. Starring Laura Linney, Mark Ruffalo, Rory Culkin, and Matthew Broderick, the film follows a single mother living in a small Catskill Mountains town, and her complicated relationships with family and friends.

Kenneth Lonergan is an American film director, playwright, and screenwriter. He is the co-writer of the film Gangs of New York (2002), and wrote and directed You Can Count on Me (2000), Margaret (2011), and Manchester by the Sea (2016). Lonergan is also known for his work as a playwright. His most noted plays include This Is Our Youth, Lobby Hero and The Waverly Gallery. Each also had a successful revival engagement on Broadway, which resulted in each play receiving a nomination for the Tony Award for Best Revival of a Play.