Zodiac

£19.99, Warner

This film will wear you out. That's not to say it's dull or overlong, just that it pummels you with so much information you'll feel pleasantly exhausted afterwards. Zodiac demands and deserves your full attention as it sifts through a dizzying multitude of clues and red herrings in the search to uncover the identity of one of the US's most notorious and cryptic serial killers. This is one of the finest true crime police procedural dramas you'll ever see, virtually the final word on the genre.

As the Zodiac killer was never brought to justice, the film explores numerous possible outcomes spanning three decades, with a filming style that evolves to suit the eras. The scenes are short, the dialogue relevant, and it's to director David Fincher's credit that he ditched his usual flying camera tricks in order to keep the story flowing. Investigation was very different in this pre-CSI, pre-Google world, relying more on the type of personal obsession shown here by a police detective and two newspaper men: Jake Gyllenhaal, Mark Ruffalo and Robert Downey Jr.

This DVD offers no extra material, although it does feature an advertisement for a full, bells and whistles special edition director's cut in 2008. This should keep you going until then.

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