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 foot, commonly referred to as foot drop, is the inability or difficulty to lift the front part of the foot. This makes walking with ease challenging, as the toes tend to drag along the ground while walking.