Wikipedia's List of Conspiracy-Thriller Films - Page 4

"The conspiracy thriller (or paranoid thriller) is a subgenre of thriller fiction. The protagonists of conspiracy thrillers are often journalists or amateur investigators who find themselves (often inadvertently) pulling on a small thread which unravels a vast conspiracy that ultimately goes 'all the way to the top.' The complexities of historical fact are recast as a morality play in which bad people cause bad events, and good people identify and defeat them. Conspiracies are often played out as 'man/woman-in-peril' stories, or yield quest narratives similar to those found in whodunits & detective stories. A common theme in such works is that characters uncovering the conspiracy encounter difficulty ascertaining the truth amid the deceptions: rumors, lies, propaganda, & counter-propaganda build upon one another until what is conspiracy & what is coincidence become entangled. Many conspiracy fiction works also include the theme of secret history & paranoid fiction." - en.wikipedia.org