5 Worst Screenwriting Mistakes Writer’s Can Make (And How What To Do Instead!)

I mean, let’s face it, maybe you’re smarter than I was when I was first starting out as a screenwriter (entirely possible!) Maybe you’re so smart that you will read dozens of scriptwriting books and go to the WGA library and read scripts and study how the working writers of today and yesteryear make something that seems so hard look easy. If so, I congratulate you.

Feel free to read on; there is always learning to be had in any art form, that’s how we get better.

BUUUUUUT… if you’re like me and have always been a naturally good storyteller and because you’re so naturally good you never really had to learn how to learn, maybe you jumped in with both feet and thought, “I can write a script!” And now you’re doing it, but you’re still learning as you go. Then, please read on. And feel free to read more BLOG POSTS, it sounds like we have a lot in common.

I consider myself a reformed Jumper-Inner, and now that I read scripts all the time and have written professionally for eight years and read my client’s scripts, I can spot script mistakes almost instantly (you will too, I promise!).

In my experience, these are the top five I STILL SEE ALL THE TIME:

1. Starting the Script with a Dream (Or Nightmare)

“Oh, my character is DARK and has a PAST! HOW CAN I SHOW IT?” NOT a dream or nightmare… PLEASE.

Sorry, not sorry: but starting with a dream or nightmare then an abrupt jolt out of bed with Evian sweat and a gasp is just lazy storytelling at this point. Not sure which show don’t tell screenwriter bible people keep reading to encourage this, but I will go on a limb and say 20% of the new writer’s scripts I read start with this cliche, and even if it worked in one movie in the 1980s, I challenge you as a smart creative to show a character’s struggle with their past in a different way.

Instead, why not brainstorm about your character’s specific trauma and how that might manifest? Get creative!

There are many ways you can propel the story and our knowledge of your protagonist’s struggle.

Your opening scene is the most important of your script. Some producers or writing contest judges will literally stop reading after the first page. If you feel like you’re almost getting there but not quite, Save the Cat’s Script Coaching can take your good idea and steer you toward the brilliance you know your script is capable of achieving.

2. Letting Scenes Drag On Too Long

The rule is simple: Start as late as you can and leave as early as possible. But what does that actually mean?

Example: You have outlined (hopefully!) a scene in which your protagonist must rush to a magic shop to find an enchanted amulet before it’s too late. But as they arrive they discover their nemesis has already convinced the shop assistant to let them buy it instead. There is a fight then the nemesis escapes with the amulet. Easy, right? What we don’t need to see if your character looking for parking, seeing the MAGIC SHOP SIGN, opening the door and making small talk with the cashier. CUT IT ALL OUT and start right when the important stuff. And one the nemesis has snatched the necklace, BAM. Your audience knows your protogonist is in big trouble. You can cut right there for tension.

What I find super helpful is to write exactly WHY this scene needs to happen along with WHAT actually happens. I use the WHY as a helpful measure of what belongs in the scene and what does not.

Brevity is one of the hardest things for writers at all levels to master.

Save the Cat Script Coaching offers expert feedback to help you cut the fluff and keep your script razor-sharp.

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3. Failing to Make Every Character Interesting

It’s easy to pour your heart into your main characters and neglect the rest of your cast. But here’s the thing: To get your script made, you need actors, and actors want characters they can sink their teeth into. Even a character with just one line should have something unique that makes them memorable.

Think of it this way: Every character is a chance to add depth to your story.

Maybe the waiter has a nervous tic, or the cab driver has a hilariously cynical view of love. By making each role interesting, you’re not only elevating your script but also creating opportunities for actors to fall in love with your work.

Not sure how to elevate your supporting cast? A Save the Cat Script Coach will guide you in creating multidimensional characters that actors want to play.

4. Writing Too Much Action

Action lines are where many writers go overboard. While it’s tempting to paint every detail of your world with words, remember:

Your job as a screenwriter is to tell your story with the fewest words possible.

Long-winded descriptions bog down the pace and make your script harder to read.

Instead, aim for concise, vivid action lines that leave just enough room for the director and actors to interpret. Read professional scripts to see how the best writers convey so much with so little. Then, do a pass on your script dedicated entirely to trimming unnecessary words and simplifying sentences.

Struggling with wordiness? Save the Cat Script Coaching includes detailed feedback to help you streamline your action lines without losing their impact.

5. Ignoring Your Script’s Voice and Theme

Before your script reaches a director or producer, remember that it’s more than just a blueprint—it’s its own art form. Your unique voice should shine through in every line, from how you describe a setting to how you craft dialogue.

Your script should feel like you—your humor, your perspective, your way of seeing the world.

And don’t forget the theme. Whether it’s subtle or explicit, a clear theme adds depth and resonance to your story. It’s the thread that ties everything together and leaves audiences thinking about your script long after the credits roll.

Need help to find your voice or to solidify your theme? With Save the Cat Script Coaching, you’ll get personalized guidance to make your script not just good, but unforgettable.

Final Thoughts

Screenwriting is an art form that’s equal parts creativity and precision.

By avoiding these common mistakes, you’ll create scripts that are tighter, more engaging, and more likely to get noticed.

But even the best writers need a fresh perspective. That’s where Save the Cat Script Coaching comes in. With expert feedback on everything from structure to characters, you’ll have the tools to take your script to the next level.

Ready to make your screenplay the best it can be?

Check out Save the Cat Script Coaching here and get personalized notes to transform your story.

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