It was announced earlier this week that the Harry Potter actor is to star alongside Twilight's Ashley Greene in the supernatural thriller.
Speaking to MTV News about how he feels over the part, Felton commented: "It's not just satisfaction. It's nervousness. It's anticipation. It's a dream role for me."
The 22-year-old also said that he will look nothing like his well-known Potter character Draco Malfoy in the movie.
He explained: "Draco has an iconic look with his pale skin, blond hair and rather sharp dress. It's a completely flip side in [Apparition]. Expect not to recognise me.
"I can say that my hair is no longer blond for this. I'm probably going to get in trouble for saying that. No more blond hair for me, so I'm excited about that."
The Apparition will tell the story of a college couple haunted by a supernatural presence after a paranormal experiment goes wrong.