The Sisterhood of the Traveling Pants 2 is a 2008 American comedy-drama film and a sequel to the 2005 film The Sisterhood of the Traveling Pants. The original cast (Amber Tamblyn, America Ferrera, Blake Lively and Alexis Bledel) return to star in the film. It was directed by Sanaa Hamri and written by Elizabeth Chandler, who wrote the previous film. The film is based upon the fourth novel in the book series: Forever in Blue (2007), but incorporates scenes and storylines from The Second Summer of the Sisterhood (2003) and Girls in Pants (2004).It is the second installment of The Sisterhood of the Traveling Pants film series and was released in theaters on August 6, 2008.