Action Line

Format

Definition: Action lines (also called scene description or narrative) are the non-dialogue portions of a screenplay that describe what the audience sees and hears on screen. They sit between scene headings and dialogue blocks, written in present tense, and convey physical action, setting details, and character introductions.

Understanding Action Line

Action lines are where most screenwriters either win or lose their reader. They need to be visual, specific, and ruthlessly concise. You are describing what a camera captures — not what characters think, not backstory, not novelistic metaphor. Present tense, active voice, tight prose. Each paragraph should be three to four lines max. White space is your friend. The best action lines feel like watching the movie. They have rhythm, they use fragments for pace, they break paragraphs at emotional beats. A block of eight lines is a wall of text that a reader will skim. Two punchy lines separated by a beat create tension. Think of every action paragraph as a shot.

Example in a Screenplay

She picks up the photograph. Studies it. Her jaw tightens.

Outside, a car door SLAMS. Headlights sweep across the
living room wall.

She drops the photo into the trash and reaches for
her coat.

Common Mistakes

Writing dense paragraphs that run six or more lines — break them up. Using "we see" or "the camera pans to" — those are directing on paper. Writing internal thoughts the audience cannot see on screen. Past tense instead of present. Over-describing what characters are wearing unless it matters to the story. Forgetting that a screenplay is a blueprint, not a novel.