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A Sound of Thunder (2005)

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.



(short story), (screen story) | 4 more credits »

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From $2.99 (SD) on Amazon Video

4 nominations. See more awards »





Cast overview, first billed only:
John Wallenbeck (as Armin Rhode)
Dr. Lucas
August Zirner ...
Charles Hatton (as Sir Ben Kingsley)
Alvin Van Der Kuech ...
Young Technician
Andrew Blanchard ...
George the Doorman
Bill Armstrong ...
Ted Eckles (as William Armstrong)
Nikita Lespinasse ...
Newswoman on TV (as Nikita Le Spinasse)
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


Evolve or die. See more »

Motion Picture Rating (MPAA)

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

Parents Guide:




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Release Date:

2 September 2005 (USA)  »

Also Known As:

O Som do Trovão  »

Box Office


$80,000,000 (estimated)

Opening Weekend:

€1,025,004 (Spain) (28 August 2005)


$1,891,821 (USA) (2 October 2005)

Company Credits

Show detailed on  »

Technical Specs



Sound Mix:

| |


Aspect Ratio:

2.35 : 1
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Did You Know?


This film was originally set for release in 2003. See more »


The Allosaurus never alters its attack plan and movements (as displayed when Travis taunts the Allosaurus by exactly predicting its movements), regardless of such factors as hunting group size, conversation/noise, position upon the path, and individual actions. See more »


Ted Eckles: My gun doesn't work.
Payne: Believe it or not, that's a safety feature. They're all tied to Travis' gun. It won't fire until he fires first.
Ted Eckles: Why the hell not?
Clay Derris: To keep clients from shooting things they shouldn't.
Payne: Hey, Derris, how about we don't mention this in our report.
Clay Derris: No harm, no foul.
Payne: Appreciate it. You know, I'm not really that big of a dick. I just to like to talk.
See more »


Referenced in Life Is Strange (2015) See more »

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User Reviews

Austin Movie Show Review
5 September 2005 | by (Austin, TX) – See 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.

81 of 127 people found this review helpful.  Was this review helpful to you?

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