Complex sentence: The first book was made into a movie in 2005, starring Alexis Bledel as Lena, Amber Tamblyn as Tibby, America Ferrera as Carmen, and Blake Lively as Bridget.
Split into simpler sentences: The first book was made into a movie in 2005. The movie stars Alexis Bledel as Lena, Amber Tamblyn as Tibby, America Ferrera as Carmen, and Blake Lively as Bridget.