Zodiac is a classic true crime film that fans still watch but a recent addition to the narrative could've changed the movie ...
That movie was adapted from Robert Graysmith's bestselling 1986 book, whereas Shackleton explains how he tried, and eventually failed, to nab the rights to a lesser-known account published in 2012 ...
Based on Robert Graysmith's book, the movie's focus is the lives and careers of the detectives and newspaper people.