The Founders day festival was filmed in the same grass field as the final battle in the Twilight saga.
In the books, the Flickers can turn themselves and others invisible; in the movie, they have telekinesis.
The Sage academy was filmed in the Shawnigan Lake school in Vancouver Island, B.C.
The character of Reina Carvajal did not appear in the original books; she was created for the movie.