In the end, the family must come together, and accept each other's faults. Forgiving past mistakes. So let s raise the stakes. We have just turned a made for TV movie idea into a theatrical. Take a story about a fat boy who feels different and is ostracized by the other kids.
Magnification takes the same story and makes it instantly more commercial.
The key to balancing heart and commercial considerations is to find the human story you're trying to tell, then find the big exciting commercial plot which helps to illustrate that story. So organic screenwriting is telling a story where all the parts are integral. He sees his life as dangerous and hers as glamorous. The Thorwald's are vastly different people. Notice how much time Stewart spends trying to get his policeman friend to investigate so that Kelly won't have to.