In Writing with Hitchcock (2001), Steven DeRosa noted that Hitchcock supervised them through every draft, asking that they tell the story visually. He told Roger Ebert in 1969: Once the screenplay is finished, I'd just as soon not make the film at all.
A drop kick is a type of kick in various codes of football. It involves a player dropping the ball and then kicking it when it bounces off the ground.
Drop shadow. In graphic design, a drop shadow is a visual effect consisting of a drawing element which looks like the shadow of an object, giving the impression that the object is raised above the objects behind it. The drop shadow is often used for elements of a graphical user interface such as windows or menus, and for simple text.