ZODIAC (2007). Director: David Fincher.
The true story of the hunt for a serial killer who taunts the very people who are pursuing him, which include Inspector Toschi (Mark Ruffalo); Robert Graysmith (Jake Gyllenhaal), who wrote the book this is based upon; Inspector Armstrong (Anthony Edwards); Paul Avery (Robert Downey Jr.) of the San Francisco Chronicle; and others. The movie details how the case comes to take over the lives of everyone trying to shut the killer down permanently. Zodiac is completely absorbing and very well-acted --- John Carroll Lynch as a suspect is especially notable, among others -- but ultimately it's frustratingly open-ended. Still, there's never a boring moment.
Verdict: Recommended for fans of true crime. ***.