11 Film Endings That Didn't Solve Anything

8. Zodiac

Just to be clear, Zodiac is great. It's a meticulous mystery thriller, and one of the more underrated films in David Fincher's incredible oeuvre. However, by tackling the story of the Zodiac killer, it also means there's an inherent issue with regards to the ending. Again, not that it's bad, but rather that it simply cannot end with its story solved.

To this day, the mystery of the Zodiac Killer - a person who went on a killing spree in California during the late 1960s and early 70s, leaving clues and cyphers to taunt the police with - remains unsolved. Fincher and his team conducted an almighty amount of research to go alongside the existing case, which results in an enthralling movie as Robert Downey Jr's reporter Paul Avery and Jake Gyllenhaal's cartoonist Robert Graysmith attempt to unpack the case.

The hope, for anyone unfamiliar with the case, as the film moves along is that it's building to the big reveal of who the Zodiac Killer is. Except, of course, it can't, because no one knows who the Zodiac Killer is. Which means the film is forced to just sort of come to a close with nothing wrapped-up. You can argue that it's not necessarily the point - the joy of the film is in the investigation itself, and the compulsion to investigate - but it does also mean there aren't any answers, despite over two-and-a-half hours spent looking for them.