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Zodiac

Zodiac is a 2007 American crime thriller film directed by David Fincher and written by James Vanderbilt.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 26, 2026|2 min read| Fact-checked

Zodiac is a 2007 American crime thriller film directed by David Fincher and written by James Vanderbilt. Based on Robert Graysmith’s books about the unsolved Zodiac Killer case, it follows journalists and investigators as they pursue the killer’s identity in Northern California. The film stars Jake Gyllenhaal, Mark Ruffalo, and Robert Downey Jr.

Premise

The film dramatizes the manhunt for the Zodiac Killer, who terrorized Northern California in the late 1960s and early 1970s and taunted authorities with letters and ciphers. Rather than focusing only on the crimes, it emphasizes the obsession of those trying to solve the case.

Production and source material

Zodiac is based on Robert Graysmith’s nonfiction books about the case, with a screenplay by James Vanderbilt. It was directed by David Fincher and produced for an American theatrical release in 2007.

Cast

The principal cast includes Jake Gyllenhaal as Robert Graysmith, Mark Ruffalo as detective Dave Toschi, and Robert Downey Jr. as journalist Paul Avery, supported by an ensemble that includes Anthony Edwards, Brian Cox, and Chloë Sevigny.

Reception and classification

The film is classified as a crime thriller and was rated R in the United States. Coverage describes it as a realistic, investigative true-crime drama focused on uncertainty and obsession.

Key facts

  • The film is based on the real-life Zodiac Killer investigation in the San Francisco Bay Area.
  • It is adapted from Robert Graysmith’s books *Zodiac* and *Zodiac Unmasked*.
  • The story centers on reporters and police who become consumed by the unsolved case.
  • The film was directed by David Fincher, known for other crime and thriller films.
  • It was released theatrically in 2007 and has a runtime of 158 minutes.
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Canadian context

Canadian readers may know the film under the same English title; in Quebec, it was released as *Le zodiaque*.[12]

Frequently asked questions

What is Zodiac about?
It follows journalists and investigators trying to identify the Zodiac Killer, a serial killer who remained unidentified and unsolved.
Who directed Zodiac?
David Fincher directed the film.
What is Zodiac based on?
It is based on Robert Graysmith’s nonfiction books about the Zodiac Killer case, including *Zodiac* and *Zodiac Unmasked*.
Who stars in Zodiac?
The main cast includes Jake Gyllenhaal, Mark Ruffalo, and Robert Downey Jr.
When was Zodiac released?
It was released in 2007.
What genre is Zodiac?
It is generally described as a crime thriller, with mystery and drama elements.

References

  1. Wikipedia — https://en.wikipedia.org/wiki/Zodiac_(film)
    Supports: Director, year, screenplay, cast, premise, and adaptation from Robert Graysmith’s books.
  2. Paramount Pictures — https://www.paramountpictures.com/movies/zodiac
    Supports: Release year, runtime, cast, and official description of the film.
  3. Rotten Tomatoes — https://www.rottentomatoes.com/m/zodiac
    Supports: Genre, synopsis, rating, and release date.
  4. RogerEbert.com — https://www.rogerebert.com/reviews/zodiac-2007
    Supports: Critical description of the film as a true-crime/obsessive procedural and its basis in the Zodiac case.
  5. Reelviews — https://www.reelviews.net/reelviews/zodiac
    Supports: Runtime, genre, cast, and plot focus on the Graysmith-led hunt.
  6. French Wikipedia — https://fr.wikipedia.org/wiki/Zodiac_(film)
    Supports: Quebec French title and production details.