Recently  I was going through some of my old books on screenwriting and story telling and I picked up the ‘Save the Cat Goes to the Movies’ by the late Blake Snyder. I found the book inspiring the first time I read it some years ago, and as I started to read it again I found a new insight.

But before explaining the insight, I need to explain what the book is about. Snyder put forward the view that the success of any film is based on two important factors:  structure, and surpassing the expectations of its genre.   In the book, Snyder takes five examples of iconic movies in each of 10 movie genres to analyse their structure and the genre variations. Each of the genre are given catchy names by Snyder that represent the most popular movie genres:

• Monster in the house: Alien; Fatal Attraction; Scream; The Ring; and Saw.
• Golden Fleece: The Bad News Bears; Planes, Trains and Automobiles; Saving Private Ryan; Ocean’s Eleven; and Maria Full of Grace.
• Out of the Bottle: Freaky Friday; Cocoon; The Nutty Professor; What Women Want; and Eternal Sunshine of a Spotless Mind.
• Dude with a Problem: Three Days of the Condor, Die Hard, Sleeping with the Enemy; Deep Impact; and Open Water.
• Rites of Passage: 10; Kramer v Kramer; Ordinary People, 28 Days; and Napoleon Dynamite.
• Buddy Love: The Black Stallion; Lethal Weapon; When Harry met Sally; Titanic; and Brokeback  Mountain.
• Whydunit: All the  President’s Men; Blade Runner; Fargo; Mystic River; and Brick.
• Fool Triumphant: Being There; Tootsie; Forrest Gump; Legally Blonde; and The 40-year-old Virgin.
• Institutionalized: M*A*S*H; Do the Right Thing; Office Space; Training Day; Crash.
• Superhero: Raging Bull; The Lion King; The Matrix; Gladiator; and Spider-Man 2.

Some of the genre may seem oddly labeled at first. An Out of the Bottle movie refers to a movie based on magic. A Golden Fleece movie refers to a quest story movie about an object of desire – the fleece or McGuffin. A Whydunnit movie refers to a detective type story about a secret that takes a dark turn. Most of the rest of the descriptions are self-explanatory.

Now the insight. I was surprised to see one of my favourite movies, Lethal Weapon, categorised under Buddy Love and not under some action-movie type heading. In Snyder’s view there are many variations of this genre: whether it is a traditional love match of ‘boy meets girl’, two cops on the trail of a crook, or a couple of goofy pals hanging out together. The story dynamics are the same: an ‘incomplete hero’, a counterpart he needs to make his life whole, and complications that keep them apart but actually binds then together.

The incomplete hero in Lethal Weapon  is Roger Murtaugh, a veteran  policeman who’s facing retirement and is not coping well. The counterpart is Martin Riggs, a cop with suicidal tendencies. Together they uncover a drug-smuggling operation and as the story unfolds their friendship grows. There are therefore two storylines going on. The first, or A story plot, is the uncovering the drug-smuggling operation. The second, or B story is the relationship between the two detectives. Snyder however seems to put the B story first in determining its genre.

Why do I find this so interesting? It’s because stories are often classified as either plot-driven or character-driven stories. Most literary fiction falls into character-driven category. Most genre stories (Action, Romance, Thriller, Horror) fall into plot-driven category. We know what these labels mean, but in reality the labels make poor descriptors. All stories are in fact character-driven. Without a protagonist with an overall story objective there is no plot driver. All stories must have a plot or they have no direction or purpose. So the labels of character-driven or plot-driven stories are at best an emphasis of the story on either the internal or external storylines.

Now consider what Lethal Weapon would have looked like if Murtaugh and Riggs had just been regular cops? It would have been just another action movie that you would soon forget. What makes it great and original is the relationship storyline – the B Story.

And this is the same with all great stories. There is often more than one storyline (or story arc) going on in a story. And one or more of the main characters may well undergo a transformation (a character arc) as the story progresses. Plot (the cause and effect sequence of events in a story) is simply a combination of the events from all the storylines and arcs. So to understand plot fully, you may need to break the main events  down into their separate storylines and character arcs, rather than consider plot to be one single time line of events.

The idea of breaking a story into more than one storyline is not new. Michael Hauge’s Six Stage Plot Structure uses the concept of an inner journey (character arc) and outer journey for the protagonist. Christopher Vogler’s  The Hero’s Journey also has a separate Character Arc for the hero. So if it helps to analyse story by adding a third story line for a key relationship between two main characters it makes sense to use it.

Great stories have multiple layers of complexity:  a plot, sub-plots, character arcs, and relationships. How you choose to plan and organise your story is up to you.