The Butterfly Effect poster

The Butterfly Effect (2004)

Film · 1h 53m · Rated R

Sci-Fi, Thriller

A young man's journey into his past to alter tragic events creates a ripple of bleak consequences.

Suspenseful and melancholy. A full-attention watch at a measured pace. Emotionally it is devastating.

Not on a US subscription service as of Oct 25, 2026.

The Butterfly Effect parents guide

For an R, this one goes further: strong sex and nudity. Beyond that, strong violence and frequent strong language.

Scare
Mildly scary
A few tense or eerie moments.
Jump scares
A couple
One or two sudden jolts.
Gore
Light gore
Some blood or injury, briefly.
Violence
Strong violence
Violence is frequent or intense.
Sex and nudity
Strong
Strong means explicit or repeated sex, extended nudity, or sexual assault shown on screen, attempted or completed, even partly off screen. Any one of these is enough.
Language
Strong
Frequent strong profanity or slurs.

How we rate: an AI reads what is known about each title and tags it 0 to 3; we check the tags against a hand-rated set and correct them by hand when readers tell us. Estimates, not a scene-by-scene review. Spot a mistake? Tell us.

Three questions

Is The Butterfly Effect scary?
Only a little. The Butterfly Effect has a few tense moments, nothing that follows you to bed.
How gory is The Butterfly Effect?
Light gore and strong violence.
What is The Butterfly Effect rated, and is it OK for kids?
Rated R, and it earns it: strong sex and nudity, strong violence, and frequent strong language. Not one for kids.

What is The Butterfly Effect about?

A young man struggles to access sublimated childhood memories. He finds a technique that allows him to travel back into the past, to occupy his childhood body and change history. However, he soon finds that every change he makes has unexpected consequences.

Does it have a happy ending? (spoiler-safe)

Bittersweet. It earns its ending, but not everyone gets what they want.

Cast and crew

Directed byEric Bress, J. Mackye Gruber
StarringAshton Kutcher, Amy Smart, Melora Walters, Elden Henson, William Lee Scott, Eric Stoltz

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Uses the TMDB API; not endorsed or certified by TMDB. Intensity, content, tone and pace tags are CouchRot's own.