After he saw Michelangelo Antonioni’s provocative Blow-Up in 1966, Alfred Hitchcock said he felt his own films were behind the times.
He planned a radical, boundary-pushing film that would feature explicit nudity, violence and homoeroticism.
It would centre around three murder sequences: one to take place by a waterfall, another on a warship and a final one in a factory.
Though Hitchcock promised to make it for under $1m, studio MCA/Universal passed on the project, forcing Hitchcock to shelve an hour’s worth of test footage.
Hitchcock’s 1972 film Frenzy, with its grim depictions of violence against women, would later recycle some of Kaleidoscope’s ideas. (Corbis)