The Butterfly Effect movie poster
Poster © New Line Cinema. Shown at reduced size for review and commentary.
GenreDrama, Sci-Fi & Thriller
RatedR
Runtime1 hr 53 mins
ReleasedJanuary 23, 2004
StreamingSee Where to Watch
DirectorEric Bress, J. Mackye Gruber
StarringAshton Kutcher, Amy Smart, Eric Stoltz

The Butterfly Effect (2004)

movie.guru URL: https://movie.guru/the-butterfly-effect-movie-review
The Butterfly Effect's Details
GenreDrama, Sci-Fi & Thriller
RatedR
Released01/17/2004 (Sundance Film Festival); 01/23/2004 (United States)
StreamingSee Where to Watch on this page.
Running Time1 hr 53 mins
Budget$13M (reported)
Box OfficeUpdated daily from Box Office Mojo. See the numbers below.
CountryUnited States
LanguageEnglish
The Butterfly Effect's Interests
GeneralOld journals, home movies, blackouts, chaos theory, the one tiny choice that changes everything.
MusicMichael Suby, who later scored The Vampire Diaries.
MoviesDonnie Darko (2001). Another troubled kid, another timeline headache.
TelevisionDark. Time travel so twisty it needs a family tree.
HeroesEvan's mom, Andrea (Melora Walters). Endlessly patient with a very confusing son.
The Butterfly Effect's Crew
DirectorEric Bress, J. Mackye Gruber
WritersEric Bress, J. Mackye Gruber
ProducersChris Bender, A.J. Dix, Anthony Rhulen, JC Spink
CinematographyMatthew F. Leonetti
MusicMichael Suby
Edited ByPeter Amundson
ProductionFilmEngine, BenderSpink, Katalyst
Distributed ByNew Line Cinema
The Butterfly Effect's Trailer
Official Trailer • Rotten Tomatoes Classic Trailers
How The Butterfly Effect Performed
movie guru's TLDR

Critics gave The Butterfly Effect a 34% on Rotten Tomatoes. IMDb voters gave it a 7.6. Both camps are right, which is the strangest part. The idea is great: read an old journal, slide back into your childhood, change one moment, wake up in a whole new life. The execution is overheated. Every timeline swings to an extreme, the dialogue is soap opera loud, and the movie uses some genuinely dark childhood trauma as plot fuel without slowing down to handle it with care. Ashton Kutcher is trying very hard, and you can see every bit of the effort on his face. Still, the rules are fun, the blackouts are creepy, and each new reality lands like a twist with a bill attached. Amy Smart has to play almost a different person in every version and pulls it off. A 5.1 because the hook is clever and the handling is clumsy. $1,863 says you dig out an old notebook from middle school tonight and regret reading the first page.

What works: The journal-jumping rules are a great hook, and Amy Smart makes each version of Kayleigh feel distinct.

What doesn’t: It’s melodramatic from start to finish and treats heavy childhood trauma as plot fuel instead of handling it carefully.

Who it’s for: Fans of twisty what-if movies who don’t mind a lot of melodrama along the way.

Spoilers

Evan realizes every fix makes life worse for someone, so he goes back to the day he first met Kayleigh as a kid and pushes her away so their lives never get tangled together. Years later they pass each other on a city sidewalk, almost recognize each other, and keep walking.

Guru’s Take
5.1/10
Average
The Butterfly Effect's Blurbs
About me:

As a kid, Evan Treborn (Logan Lerman, then Ashton Kutcher) keeps blacking out at the worst moments of his childhood, so he starts writing everything down in journals. Years later in college, Evan reads an old entry and gets yanked straight back into his younger self, with the power to change what happened. So he decides to fix things for his childhood friends: Kayleigh (Amy Smart), Lenny (Elden Henson) and Kayleigh's troubled brother Tommy (William Lee Scott). Every fix builds a brand new present, and not always a better one. Eric Bress and J. Mackye Gruber direct. One hundred fourteen minutes, a lot of headaches.

Who I'd like to meet:

Anyone who has ever wanted a do-over. Read the fine print first.

The Butterfly Effect's Cast (in credits order)
Ashton KutcherEvan Treborn
Melora WaltersAndrea Treborn
Amy SmartKayleigh Miller
Elden HensonLenny Kagan
William Lee ScottTommy Miller
Eric StoltzGeorge Miller
Callum Keith RennieJason Treborn
Lorena GaleMrs. Boswell
Nathaniel DeveauxDr. Redfield
Ethan SupleeThumper
Camille SullivanCricket
Kevin DurandCarlos
Full cast and crew on IMDb.
The Butterfly Effect's Edit History
Every change to this page, newest first. Movie data updates are logged like any other edit.
  • (cur | prev) 14:30, 17 October 2026 DataBot +480 Numbers refreshed: Worldwide box office $96.8M; Domestic box office $57.9M; Opening weekend $17.1M; Profit / loss (est.) +$28.9M; Rotten Tomatoes 34%; CinemaScore B+; box office chart updated; Rotten Tomatoes critics 34% (169 reviews); Metacritic 30 / 100; CinemaScore B+; IMDb users 7.6 / 10 (562,693 votes); movie.guru score 4.8.
  • (cur | prev) 12:00, 17 October 2026 DataBot +2,000 Profile created from Wikipedia and Box Office Mojo: cast, crew, release dates, budget, official trailer.