How to Write a Flashback in a Screenplay

A flashback takes the reader into an earlier moment in the story's timeline. The format's only job is to make the time jump unmissable: mark the entry, mark the exit, and never leave the reader guessing which "now" they're in.

Method 1: The Slugline Suffix

For a single-scene flashback, append (FLASHBACK) to the scene heading and return with a time marker:

INT. MARA'S APARTMENT — NIGHT

Mara stares at the car keys in her palm.

INT. FAMILY SEDAN — NIGHT (FLASHBACK)

Rain hammers the windshield. MARA'S FATHER,
young, glances at his watch instead of the
road.

BACK TO PRESENT

INT. MARA'S APARTMENT — NIGHT

Mara closes her hand around the keys.

BACK TO PRESENT (or BACK TO SCENE, or simply the next present-day slugline) closes the loop.

Method 2: BEGIN / END FLASHBACK

For a flashback spanning multiple scenes, wrap the whole block:

BEGIN FLASHBACK

INT. FAMILY SEDAN — NIGHT

Rain hammers the windshield. Mara's father
glances at his watch instead of the road.

EXT. BRIDGE — CONTINUOUS

Headlights. The rail. The water below.

END FLASHBACK

INT. MARA'S APARTMENT — NIGHT

Mara closes her hand around the keys.

Inside the wrapper, write normal scenes with normal headings; the wrapper does the time-signaling.

Method 3: The Quick Cut

For a flash lasting a beat — an image, a scream — you don't need a full flashback structure at all:

A HUSBAND. A HOSPITAL CEILING. THE FLATLINE'S
SCREAM. Gone.

Quick cuts work inside action and are often stronger than full flashbacks — see "When not to flash back" below.

Formatting Rules

• The flashback heading keeps its own INT./EXT., location, and time of day — the (FLASHBACK) tag is a suffix, not a replacement
• Number flashbacks if there are several threads: (FLASHBACK — 1996), (FLASHBACK — THE ACCIDENT)
• Prefer DAWN/DAY/NIGHT inside the flashback that match the memory's lighting — that contrast is free storytelling
• Never nest flashbacks inside flashbacks; if you're tempted, the structure needs rethinking

When Not to Flash Back

• Exposition delivery — if the flashback just tells us facts, try revealing them in present-tense conflict instead
• The opening-scene cheat — flash-forward to your climax, then "24 HOURS EARLIER" is legal but exhausted; make sure the frame genuinely recontextualizes
• Anything the audience already knows — repeating the accident beat-for-beat before the reveal deflates it

The strongest test: does the present-day scene change meaning because we saw the past? If not, cut the flashback and trust the reader.

Flashbacks and Voice-Over

Memory + V.O. is the classic pairing:

                         MARA (V.O.)
          He checked his watch twice that
          night. I've counted.

          INT. FAMILY SEDAN — NIGHT (FLASHBACK)

Used sparingly, V.O. stitches flashback fragments without full scenes.

Frequently Asked Questions

How do you start a flashback?

With a slugline suffixed (FLASHBACK), a BEGIN FLASHBACK wrapper for multi-scene blocks, or a quick-cut image inside action.

How do you end a flashback?

END FLASHBACK, BACK TO PRESENT, or simply the next present-day scene heading — as long as the return is unambiguous.

Should a flashback be a full scene?

Only if the past moment deserves dramatic weight. For impressions, quick cuts inside action are leaner and often stronger.

Can flashbacks go anywhere in the script?

Technically yes; dramatically, they work best once the present has made the audience want the past. Early flashbacks answer questions nobody asked.

Related Pages

• What Is a Slugline? — the headings you'll suffix
• V.O. vs O.S. — narration over memory
• How to Write a Montage — compressing time forward instead of backward