Though I have not seen any of the Twilight movies yet, I found this article by John Granger to be completely fascinating and on point about popular entertainment.
Touchstone Archives: Mormon Vampires in the Garden of Eden:
"I suggest that the Twilight series is something for thoughtful people to be aware of and to think seriously about, first, because of its remarkable hold on the imagination of American readers and movie-goers, but second, and more important, because of the reason these books are so popular: They meet a spiritual need. Mircea Eliade, in his book The Sacred and the Profane, suggests that popular entertainment, especially imaginative literature and film, serves a religious or mythic function in a secular culture. When God is driven to the periphery of the public square, the human spiritual capacity longs for exercise, and it often finds it in the 'suspension of disbelief' and activity of the imagination that are available in novels and movies.
The books and films that satisfy this spiritual longing most profoundly are the ones that have religious content of some kind, sometimes any kind. Not just The Lord of the Rings and The Chronicles of Narnia but also Harry Potter and The Matrix contain symbolism and religious notes that resonate with readers and moviegoers.
People are drawn to, and many are consumed by, those books and movies that most engagingly and convincingly deliver or smuggle in this religious content and mythic meaning. Not surprisingly, though, this meaning cannot tear down or even challenge the golden calves of our modern moral landscape."