Altered Species (2001)
A laboratory experiment on rats spirals into terror when science creates something far too large — and far too dangerous — to contain.
Altered Species - Movie Information
- Original Title: Altered Species
- Release Year: 2001
- Directed by: Serge Rodnunsky
- Type: Movie
- Genres: Horror, Sci-Fi
- Runtime: 1h 31m
- Original Language: English
- Spoken Languages: English, Portuguese
- Release Date (Theatrical): September 1, 2001 (United States), July 12, 2003 (United Kingdom - 15)
- Alternative Titles: Rodentz (US), Ratos Mutação Genética (BR)
- Production Companies: Rojak Films
- Production Countries: United States of America
Altered Species - Plot
Altered Species is a 2001 horror film, about a scientist who has found a way to regenerate damaged tissue in the body. He has tried his experiment on rats, but the effects are disastrous. One of them grows to 50 times its normal size, and attempts to destroy the laboratory.
Altered Species - Trailer
Watch the official trailer and see the experiment that should never have been run:
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Altered Species - Cast & Crew
Director(s)
- Serge Rodnunsky
Main Cast
- Allen Lee Haff
- Leah Rowan
- Guy Vieg
- Robert Broughton
- Richard Peterson
- Derek Hofman
- Alexandra Townsend
- David Bradley
Writers
- Serge Rodnunsky
Producers
- Serge Rodnunsky
Altered Species - FAQs
What is Altered Species about?
Altered Species follows a scientist who develops a method to regenerate damaged tissue and tests it on rats. The experiment spirals out of control when one rat grows to fifty times its normal size and begins terrorizing the laboratory. It's a low-budget creature-feature rooted in classic sci-fi horror territory.
How big does the mutant rat get in Altered Species?
According to the film's premise, the rat grows to fifty times its normal size after being subjected to the scientist's tissue-regeneration formula. That's roughly the scale of a large dog or bigger, making it a formidable threat as it turns on the laboratory and everyone inside.
Where can you watch Altered Species online?
You can check current streaming availability for Altered Species on JustWatch, which tracks where the film is available to rent, buy, or stream in your region. Availability can change over time, so JustWatch is the best place to find up-to-date options.
Is Altered Species also known by another title?
Yes — Altered Species was released under the alternate title Rodentz in the United States and as Ratos Mutação Genética in Brazil. The Rodentz title leans more directly into the film's creature-feature premise and is the name many horror fans know it by.
Who directed and wrote Altered Species?
Serge Rodnunsky handled both the writing and directing duties on Altered Species, and also served as producer. It's very much a one-man creative vision — a low-budget independent horror project produced through his company Rojak Films and released in 2001.
Who are the main cast members in Altered Species?
The film stars Allen Lee Haff as Walter and Leah Rowan as Alicia, with Guy Vieg playing Professor Irwin. The supporting cast includes Robert Broughton, Richard Peterson, Derek Hofman, Alexandra Townsend, and David Bradley rounding out the ensemble trapped in the lab.
What genre is Altered Species?
Altered Species sits squarely in the Horror and Sci-Fi genres — specifically the creature-feature subgenre. It blends mad-scientist science fiction with monster-movie horror, following a tradition of low-budget films about laboratory experiments gone terribly wrong and the chaos that follows.
How long is Altered Species?
Altered Species runs 91 minutes — just over an hour and a half. It's a compact runtime that keeps the creature-feature premise moving without overstaying its welcome, which is pretty typical for independent horror films of this era and budget level.
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