There is no such thing as a portable story. - Robert McKee

Anxious, inexperienced writers obey rules. Rebellious, unschooled writers break rules. Artists master the form.

A revered Hollywood axiom warns: “Movies are about their last twenty minutes.” In other words, for a film to have a chance in the world, the last act and its climax must be the most satisfying experience of all. For no matter what the first ninety minutes have achieved, if the final movement fails, the film will die over its opening weekend.

What is the worst possible thing that could happen to my protagonist? How could that turn out to be the best possible thing that could happen to him?