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A Sound of Thunder (2005)

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When a scientist sent back to the prehistoric era strays off the path he causes a chain of events that alters history in disastrous ways.


Peter Hyams


Ray Bradbury (short story), Thomas Dean Donnelly (screen story) | 4 more credits »
4 nominations. See more awards »





Cast overview, first billed only:
Armin Rohde ... John Wallenbeck (as Armin Rhode)
Heike Makatsch ... Alicia Wallenbeck
Jemima Rooper ... Jenny Krase
David Oyelowo ... Payne
Wilfried Hochholdinger ... Dr. Lucas
Edward Burns ... Travis Ryer
August Zirner ... Clay Derris
Ben Kingsley ... Charles Hatton (as Sir Ben Kingsley)
Catherine McCormack ... Sonia Rand
Alvin Van Der Kuech Alvin Van Der Kuech ... Young Technician
Andrew Blanchard Andrew Blanchard ... George the Doorman
Bill Armstrong Bill Armstrong ... Ted Eckles (as William Armstrong)
Corey Johnson ... Christian Middleton
Nikita Lespinasse Nikita Lespinasse ... Newswoman on TV (as Nikita Le Spinasse)
Scott Bellefeville Scott Bellefeville ... Onlooker (as Scott Bellefeuille)


2055, Charles Hatton has made a fortune by founding 'Time safari', which offers rich 'big game hunters' short time travels to kill off dinosaurs just before their natural death. When Travis notices the weather and wildlife are not behaving as usual, he consults Dr. Rand, the contractually invisible inventor of the supercomputer which controls the time travel. They soon face 'time waves', each worsening the effects in 2055 of evolutionary distortions, lower lifeforms first. They attempt to identify and rectify the past alteration, but each attempt gets harder in their distorted present. Written by KGF Vissers

Plot Summary | Plot Synopsis


Some Rules Should Never Be Broken. See more »

Motion Picture Rating (MPAA)

Rated PG-13 for sci-fi violence, partial nudity and language | See all certifications »

Parents Guide:

View content advisory »



Czech Republic | UK | Germany | USA


English | Mandarin

Release Date:

2 September 2005 (USA) See more »

Also Known As:

O Som do Trovão See more »


Box Office


$80,000,000 (estimated)

Opening Weekend USA:

$1,190,791, 4 September 2005, Wide Release

Gross USA:

$1,891,821, 2 October 2005

Cumulative Worldwide Gross:

$5,989,640, 13 October 2005
See more on IMDbPro »

Company Credits

Show more on IMDbPro »

Technical Specs



Sound Mix:

DTS | Dolby Digital | SDDS



Aspect Ratio:

2.35 : 1
See full technical specs »

Did You Know?


This movie takes place millions of years in the past, and in 2055. See more »


Any interference with the evolutionary time line the travelers made during the age of the dinosaurs would have been greatly impacted by the mass extinction of the dinosaurs around 65 million years ago. However, no mention is made in the movie of the effect the mass extinction could have had on ripple effect caused by the killing of the butterfly. See more »


[after the commercial time machine is ruined, Sonia Rand manages to activate the plug and play Time Alteration Mainframe Interface - TAMI - program in the place that holds the original machine]
TAMI: Hello, Dr. Rand. Where exactly are we?
Sonia Rand: We're in the university.
TAMI: In the public sector now? Not a good sign.
See more »

Alternate Versions

For the Dutch DVD release the aspect ratio was changed from 2,35:1 to 1,78:1. See more »


Referenced in Teen Titans Go!: Staring at the Future (2013) See more »

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User Reviews

Austin Movie Show Review
5 September 2005 | by leilapostgradSee all my reviews

Imagine a film student who's learning to use CGI technology for the first time. His final project in class is to create a full-length feature film using everything he's learned in class the entire semester. His film would be better than A Sound of Thunder.

It's Jurassic Park meets The Butterfly Effect, but it's total crap. The production of this futuristic, sci-fi tale (based on the classic Ray Bradbury short story) is pathetically cheap and completely distracts from an otherwise interesting story. It's 2055, and time travel is now possible. When a group of safari hunters travel back to prehistoric time to kill a tyrannosaurus Rex, an equipment failure causes one time traveler to panic and step on a butterfly, thus disrupting the entire evolution of life on earth.

Cool story, right? Poorly, poorly, poorly executed. The CGI dinosaur is a joke, as are all the other "creatures," and the futuristic outside shots are so lame you can practically see the green screen outline on the actors. Shot during the 2002 flooding of Prague, A Sound of Thunder was delayed for so long because the production company went bankrupt. And it shows.

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