Terror it is indeed ... to watch this "movie".
The Terror (1963) is an American horror film produced by Roger Corman, and famous for being filmed on leftover film sets from other AIP productions, including The Haunted Palace. The movie was also released as Lady of the Shadows, The Castle of Terror and The Haunting, and was later featured as an episode of Cinema Insomnia and of Elvira's Movie Macabre.
Although credited to Corman, parts of the film were shot by Francis Ford Coppola, Monte Hellman, Jack Hill, and Jack Nicholson. Corman shot footage of star Boris Karloff and other actors walking across the sets and downstairs with the belief that he would be able to make sense of them later. In the next three days Coppola, Helman and Hill all tried to do something. Nicholson, who was keen to get directing experience himself, also took a turn behind the camera.
In the early 1990s, actor Dick Miller, who plays Karloff's major domo, was hired to shoot new scenes to use as a framing sequence for an overseas version of The Terror. Under...