The British star played the role of Draco Malfoy in the hit movie series, which ended with the final movie's recent cinematic release.
At the premiere of his other new movie, Rise of the Planet of the Apes, Felton said there is a lot in store for fans on the DVD release of the wizarding movie in November.
He said to MTV News: 'They shot a bunch of stuff. There are documentaries and us doing all sorts of [things on set]. You saw us playing golf last time.
'There was all sorts of crazy stuff. They were trying to compose this mega-edition.'