The Twilight Saga's first installment was released.
The Twilight Saga (film series) . The first installment , Twilight , was released on November 21 , 2008 . The third installment , Eclipse , was released on June 30 , 2010 , and was the first Twilight film to be released in IMAX . Twilight (2008 film) . It is the first film in The Twilight Saga film series .