John Cusack has stepped in to replace Christian Slater as one of the voices in new animation film Igor.
The film, directed by Anthony Leondis, is the story of a talented individual who has been born with a hunchback and as such is doomed to a life of servitude under a crazy scientist.
Cusack joins an impressive cast, chief among them Steve Buscemi, John Cleese and Jay Leno.
Igor is scheduled for an October 2008 release.