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Three Act Structure applied to IOTBS and ET
Applying the
Three-Act Structure to Invasion of the Body Snatchers (1956) and E.T.
the Extra-Terrestrial
The three-act
structure divides a narrative into:
- Act 1 – Setup (introduces characters, world,
conflict)
- Act 2 – Confrontation/Obstacles/Disruptions (main challenges, rising tension)
- Act 3 – Resolution (climax and ending)
Act 1 –
Setup
- We are introduced to Dr. Miles
Bennell returning to the small town of Santa Mira.
- Strange behaviour is noticed as
townspeople claim their loved ones are not really themselves.
- Suspicion builds when mysterious
seed pods begin appearing.
- The normal, safe suburban setting
is established before being disrupted.
Act 2 –
Confrontation
- Miles and Becky discover the pods
are creating emotionless duplicate humans.
- They attempt to warn others but
realise the town is already being taken over.
- Tension rises through paranoia,
distrust and chase sequences.
- The conflict becomes survival
against an unstoppable force.
Act 3 –
Resolution
- Becky is replaced, leaving Miles
isolated.
- He escapes and desperately warns
authorities: “You’re next!”
- In some versions, officials begin
to believe him, offering slight hope.
- The ending resolves the immediate conflict but leaves wider fear unresolved
The structure
builds from everyday normality into escalating horror, then ends with a
dramatic warning that reflects Cold War anxieties.
Act 1 –
Setup
- We meet Elliott, a lonely suburban
boy struggling with family change.
- An alien is accidentally left
behind on Earth.
- Elliott discovers and hides E.T. in
his home.
- Their emotional bond begins.
Act 2 –
Confrontation
- Elliott and E.T. grow closer,
sharing thoughts and emotions.
- E.T. learns about Earth while
trying to “phone home.”
- Government agents begin closing in.
- E.T. becomes sick, and Elliott is
emotionally affected.
Act 3 –
Resolution
- E.T. appears to die but revives
when his people return.
- Elliott and his friends help E.T.
escape authorities in the bicycle chase.
- Emotional climax: E.T. says goodbye
and returns home.
- Elliott gains maturity and
emotional closure.
Why it works
The structure
focuses on emotional development as much as action, creating a heartwarming
resolution.
Comparison
|
Film |
Act 1 |
Act 2 |
Act 3 |
|
Invasion
of the Body Snatchers |
Mystery and
unease |
Paranoia and
survival |
Warning /
uncertain hope |
|
E.T. |
Friendship
begins |
Danger and
emotional bond |
Escape and
heartfelt goodbye |
These films
show how the same narrative structure can serve different genres:
- Invasion of the Body Snatchers =
science-fiction horror / political allegory
- E.T. the Extra-Terrestrial = family
science-fiction / coming-of-age story