12 Shelved Movies That Would've Been INSANE

Background: In 1965, following a string of less-than-successful films and in an attempt at one-upmanship with boundary-pushing European directors, Alfred Hitchcock set out to make his most shocking picture yet.

Based on the real-life stories of British murderers Neville Heath and John George Haigh, the film was planned to feature a level of sex and graphic violence unlike anything British and American audiences had seen before.

Why It Didn't Happen: Perhaps unsurprisingly, Universal were left unimpressed with Hitchcock's themes and the film's excessive graphic content. Despite his assurances that he could make the film for less than $1 million, and having already shot 4 reels of test footage, they ultimately refused to fund the project.

Will It Ever Happen? It sort of already did. The film's themes were eventually heavily adapted by Hitchcock into his penultimate 1972 thriller Frenzy. The adaptation switched the location from New York to London and also removed some of the more controversial aspects of the original. You can still watch some of Kaleidoscope's silent test footage online.