 Alfred Hitchcock (I) (qv) planned to shoot a scene in the Ford  automobile plant in Dearborn, MI. As Thornhill and a factory worker  discussed a particular foreman at the plant, they would walk along  the assembly line as a car was put together from the first bolt to  the final panel. Then, as the car rolled off the line ready to  drive, Thornhill would open the passenger door and out would roll  the body of the foreman he had just been discussing. Hitchcock loved  the idea of a body appearing out of nowhere, but he and screenwriter  Ernest Lehman (qv) couldnt figure out a way to make the scene fit  the story, so it never came to fruition.