Tom Felton, best-known for his role as Draco Malfoy in the “Harry Potter” franchise, is to star in the $15 million action/sci-fi film “Altered,” alongside Richard Brake (“Game of Thrones,” “Barbarian,” “Mayor of Kingstown”), Igor Jijikine (“Indiana Jones and the Kingdom of the Crystal Skull”), Aggy Adams (“The Witcher”) and Liza Bugulova.