Zodiac (2007)

Factual error: In a couple of scenes, most notably the one where Graysmith drives his kid to school, there are newer cars in the background than the year it is supposed to be. In this scene the car is a 1971 Chrysler, when the scene takes place in 1969.

Continuity mistake: When Robert Graysmith is speaking with Sherwood in Sherwood's garden, Robert has his arms crossed. The watch on Robert's left hand changes multiple times between shots. (01:58:25 - 01:59:05)

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Continuity mistake: In the shot where Robert Graysmith goes to see Paul Avery on his boat, the pong game on the T.V. in the background goes from 15:9 to 14:9 back to 15:9 between shots.

Trivia: The theme tune to the news station when they are trying to arrange the meeting is the theme to Channel 9 news in Australia, played unmodified.

Trivia: Ione Skye plays the woman who claims the Zodiac killer forced her car off the road. Her father, Donovan, sings the song that plays over the movie's credits: "Hurdy Gurdy Man."

Robert Graysmith: Paul, are you okay?
Paul Avery: No... but thanks for asking.

Robert Graysmith: It's ok... Avery has a gun.

Robert Graysmith: Just because you can't prove it doesn't mean it isn't true.
Dave Toschi: Easy, Dirty Harry.

Question: Are this film's Zodiac killer and the Scorpio Killer in "Dirty Harry" based on the same person?

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Question: There is a scene in Robert Graysmith's kitchen where you can see a container of Old Bay Seasoning on the top of the stove. I am from Maryland and I found it unusual that they would have it out in California, especially before the internet came into being. Did I see that wrong? I couldn't find the answer anywhere else.

Question: Near the end of the film a high school year book is shown. What school is it from and what year?