In an earlier post we introduced the story equation: S = (C + W) x O. Now let’s expand it with a fourth variable — theme — and apply all four to a single film.
S = [(C + W) x O] x T
Every good story is about an interesting character who wants something badly, faces obstacles while struggling to get it, and illuminates a universal truth worth telling. Theme is the multiplier that gives the whole equation its meaning.
Quentin Tarantino’s Inglourious Basterds is a useful case study — not because it does everything perfectly, but because it does three variables exceptionally well and stumbles on the fourth in an instructive way.
First Variable: Character
You have roughly ten to fifteen pages to present a protagonist complex enough to make us want to invest in their journey. Tarantino rarely fails at this.
Lt. Aldo Raine (Brad Pitt) commands our attention from his first scene. His thick Southern drawl, unusual good looks, and menacing charm make him immediately magnetic. He’s volatile, funny, and completely committed to his cause — and we can’t wait to see what he’ll do next.
Second Variable: Want
Without a clear goal, characters are immobile. The stronger the want, the stronger the audience’s investment.
Raine’s objective is bracingly simple: kill Nazis. Every last one. He drops his men behind enemy lines with explicit orders to cause maximum havoc and bring fear into the heart of the enemy. It’s extreme, it’s violent — and we’re completely on his side. He’s fighting for the greater good, one scalp at a time.
Third Variable: Obstacles
If a character achieves their goal too easily, there’s no story. The higher the hurdles, the more compelling the journey.
Raine’s plan to bomb a Nazi cinema event unravels after a meeting ends in bloodshed in a French tavern. The only survivor, German actress Bridget von Hammersmark, escapes — but leaves her slipper behind as evidence. When two of Raine’s men can’t maintain convincing Italian accents at the premiere, and the slipper gives away Hammersmark’s betrayal, Raine must improvise to save the mission and himself.
Fourth Variable: Theme
Theme is the why behind the story — the larger, universal message that makes the whole journey worth telling. It’s also where Inglourious Basterds is most complicated.
The film opens with “Once upon a time in Nazi-occupied France” — signaling from the start that this is revisionist fantasy, not history. That framing gives Tarantino room to indulge in stylized, operatic revenge. But it also creates a tension: can sadistic revenge be a satisfying theme when set against the actual horror of the Holocaust? The film’s exuberant tone and the gravity of its historical backdrop pull against each other throughout. It’s a legitimate artistic choice — but it’s worth examining, because theme that conflicts with its own world leaves the audience unsettled in ways the story may not intend.
Your theme should illuminate something universal and true. Make sure it earns the weight of the world you’ve built around it.
The Complete Equation
S = [(C + W) x O] x T
Create a character we can hope and fear for. Give them a goal they’ll do almost anything to achieve. Pile on the obstacles. Then ask the hardest question: what does this story ultimately say about being human?
Answer that, and you have the foundation of something worth writing.