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.
In Rock music the drop is characterized by an increase in the speed of the bassist and usually a big boost to volume and distortion to the keyboard or guitar. The song's volume, dynamics, and tempo change while retaining core elements of the song pre-drop implemented in a more improvisational way.