How to Make Your Story Believable

Believable Characters

The utterly believable Tony Curtis and Jack Lemmon in Some Like it Hot

How do you make the characters in your films and novels believable?

In his book, Film Scriptwriting: A Practical Manual, Dwight V. Swain offers us two principles that underpin verisimilitude in stories – justification for everything that happens in the tale and a proportional response from the character to the events that confront him.

Believable Characters

Justification boils down to the readers and audiences believing that given a specific personality type, a character would react to a challenge, to any sort of stimulus really, precisely in the way that he does. In short, if your readers understand why your character acts in a specific way, they will experience his actions as believable and appropriate.

But it is also important to render a character’s actions in proportion to the stimulus that initiates them.

Exaggerated, unmotivated behaviour, under normal circumstances, can spoil a scene. If a girl turns down a casual request for a date from a man she hardly knows and he then proceeds to burst into tears, his behavior would be considered an overreaction.

If, on the other hand, a child were to run into a room, screaming and bleeding, and her mother were to ignore her in order to finish her bridge game, we would consider her behaviour as an underreaction.

Over and under reactions are major flaws that undermine believability in stories.

In Some Like It Hot, the director, Billy Wilder, was asked why he opened the film with the St. Valentine’s Day Massacre. He explained that he needed to provide the audience with a powerful reason why the two musicians, Jack Lemmon and Tony Curtis, would dress up in girls’ clothes (used to generate the many priceless moments in the film). Their need to hide their identities from the mob makes their behaviour credible.


A character’s actions will be believable if they are justifiable and proportional to the event that initiates them.

2 thoughts on “How to Make Your Story Believable

  1. Stephen Marcus Finn

    What a surprising joy it was to open your blog entry here, Stavros, and see a still of Tony Curtis as Jo and Jack Lemmon as Daphne in my favourite comedy “Some Like it Hot”. I think that Jack Lemmon deserved the Oscar for his brilliant performance more than Charlton Heston in the, now, horrendously dated “Ben Hur”. The only time I think that Tony Curtis appears unbelievable is when he, possibly is supposed to be – as the rich tycoon who’s out to seduce Sugar (Marilyn Monroe is also a delight here). I do think that Billy Wilder made a mistake by focussing so much on the seduction scene rather than having more on Jack Lemmon doing the tango with Joe E. Brown. And the subsequent scene where Jack Lemmon is exultant in having become engaged is, I find, totally believable. What a performance!


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