Overview
Strings is a 2004 animated fantasy film directed by Anders Rønnow Klarlund about the son of an ostensibly assassinated ruler who sets out to avenge his father but through a series of revelations comes to a much clearer understanding of the conflict between the two peoples concerned. An international co-production by Denmark, Sweden, Norway and the United Kingdom, the film was made with marionettes and the strings are part of the fictional world as life strings.
The world of Strings
The fact that the characters are played by marionettes is incorporated into the film's fictional universe. That is, the characters are literally marionettes. Wide shots of the countryside reveal millions of strings stretching endlessly into the sky, each one representing an individual on earth. Nobody knows how far the strings reach or who is controlling them. As far as the characters know, the strings are controlled by a higher power.
When a string attached to a moveable limb is severed, it is analogous to amputation; the individual loses the ability to use that body part. Once a string is cut nothing can repair it or bring back to life whatever it was attached to. If the "head string" is cut, it results in permanent death.
Since nothing can reanimate a body part after its string is cut, repairs to injured individuals must be made using healthy, unsevered parts. An unfortunate collection of poor people and prisoners is kept as a donor class. When a person of royalty or other social importance loses a body part, another is involuntarily taken from a prisoner and replaced with its string intact.
From Wikipedia (CC BY-SA 4.0).