The Twilight Saga: New Moon is a 2009 American romantic fantasy film based on Stephenie Meyer's 2006 novel New Moon. It is the second film in The Twilight Saga film series and is the sequel to 2008's Twilight, which is also based on Meyer's previous novel. Summit Entertainment greenlit the sequel in late November 2008, following the early success of Twilight. Directed by Chris Weitz, the film stars Kristen Stewart, Robert Pattinson, and Taylor Lautner, reprising their roles as Bella Swan, Edward Cullen, and Jacob Black, respectively.

Melissa Rosenberg, who handed in a draft of the film script during the opening weekend of Twilight, returned as screenwriter for The Twilight Saga: New Moon. Filming began in Vancouver in late March 2009, and in Montepulciano, Italy in late May 2009.

The Twilight Saga: New Moon was released on November 20, 2009 in most countries, and set domestic box office records as the biggest midnight screening with $26.3 million. This led to the biggest single day domestic gross with $72.7 million. The film also opened with the third biggest domestic opening weekend ($142,839,137). The film was voted as the "Favorite Movie of 2009" on Moviefone and was was well received by fans,] but critical reception was mixed.