Raimi has been working on his latest cinematic effort, Oz the Great and Powerful which is also a sort of remake, being a prequel to The Wizard of Oz. It tells the story of how the magician named Oz came to rule the fantasy world.
The original Evil Dead (1981), about a group of young people tormented by demons in a remote woodland cabin, is clearly influenced by the writings of H.P Lovecraft. It even featured the Necronomicon, a book of evil spells and ancient Semitic incantations written by the mad Arab, Abdul Alhazred.
Evil Dead was preceded by a pilot version of the film which Sam Raimi made in 1979 called Within The Woods. The entire movie is available to watch online for free. It's only half an hour long so have look if you want to find out how it all started.