The purpose of flashbacks in a screenplay is to give the
audience information that is needed to
move the story forward and to clarify the actions of the characters. They should only be used when absolutely necessary.
When a character recalls an important event from his
past, that memory can be shown in a
flashback. But the flashback should be a significant event, one that
influenced the character's actions in
the present. This event should provide the audience with clues about the character's motivation. The flashback can
reveal a strong desire or recall a terrifying,
thrilling, shameful, or happy experience.
Techniques For Formatting a Flashback
To determine where a flashback is needed in the script,
the screenwriter should decide when the audience needs to know something from
the character's past. Getting into the flashback scene—transitioning—is just as
important as the flashback scene itself. Transitions must be executed smoothly
and seamlessly so that the audience is not jolted from the present to the past,
and back again to the present.
To smoothly transition into a flashback from a
present-time scene, you can use techniques that evoke the protagonist's memory.
He can look at a photograph that carries him back in time. He can gaze at a
lake or mountain that carries him back to a similar setting in his past. Or he
can hear a melody that evokes a memory of a past time.
Here is an example of formatting a transition to a
flashback and a flashback scene:
INT. SAIGON HOTEL ROOM – DAY (1983)
Kim gets up from the sofa. Crosses the room to the
window. Gazes down at people
walking along the street. She stares at a mother and a
young girl about her
own age.
FLASHBACK
TO:
INT. SAIGON HOSPITAL – DAY (1981)
Kim's mother is in a hospital bed. Kim is holding her
hand, squeezing hard.
KIM
Mother, mother open your eyes.
Kim drops her mother's lifeless hand. She stares with
unbelieving eyes.
A voice calls her name, "Kim! Kim!"
BACK TO PRESENT
Kim turns away from the window. Steve is calling her
name.
STEVE
Kim! Kim! Are you okay?
KIM
Yes.
STEVE
You seemed far away when I called you.
In the above example, the present-time scene transitions
into a flashback. Kim gazes out the window and sees a mother and daughter who
evoke a memory of her own mother.
The words, FLASHBACK TO (all caps), appear at the right
of the page, indicating that the next scene is a flashback. The flashback scene
itself is formatted like any other scene. In this example, it is set in a
Saigon hospital. We see Kim's memory of her dying mother. So the audience
learns what happened to Kim's mother and how it affected her.
Notice how the flashback transitions back to the
present-time scene. Kim hears a voice calling her name, calling her back to the
present. The words, BACK TO PRESENT (all caps), appear on the left side of the
page, indicating that we are leaving the flashback and returning to the present
time. The transition is smooth because we see Kim turn away from the window
where her memory was first evoked in a flashback. She turns away because a
voice distracts her from her memory and makes her focus on the present time.
By reading screenplays with flashbacks, you'll learn how
to transition into and out of them and when to use them effectively. They
shouldn't be used indiscriminately. It's best to show action in present time
and use flashback scenes only to give the audience information it can't get
from present-time action.
To write a flashback scene, ask yourself several
questions:
1.) What does the audience need to know about the
protagonist's past that cannot be shown
in a
present-time scene?
2.) Where does the flashback take place? Describe the
geographic location.
3.) When does the flashback memory take place? Pinpoint
the time period. Did the event
take place in the character's childhood,
several months ago, or many years ago?
4.) Who are the other characters in the flashback and why
are they important?
5.) How is the character's memory evoked as a flashback?
This is known as the transition
into the flashback. Does a place, sound,
picture, or present event trigger a memory?
How does the
character return (transition) to the present from his memory, or flashback?
Does someone
call his name, telephone him, tap him on the shoulder?
Source : FilmmakerIQ.com