means to cause a downfall

The cast of Metroland - 1997 includes: Jonathan Aris as Dave Rufus as Henri Christian Bale as Chris Del Bartle as One of The Subverts Gareth Batson as One of The Subverts Kerry Burton as Secretary Danny De Matos as One of The Subverts Bethan Fairbairn as Amy Daisy Fairbairn as Amy Ifan Meredith as Mickey Brian Protheroe as Woody Lee Ross as Toni Amanda Ryan as Joanna Lucy Speed as Punk Girl Boris Terral as Jacques Brad Waissman as One of The Subverts Emily Watson as Marion Clare Wilkie as Girl at School Dance John Wood as The Retired Commuter Elsa Zylberstein as Annick

The agent is a virus, it therefore subverts the cell's manufacturing processes to create copies of itself.

The word is sabotage. It means to deliberately destroy, damage, or obstruct something.

Well a normal narrative starts in equilibrium and the audience just get a sense of the world the protagonist lives in. A subverted narrative starts with disruption and events transpire from there. A good example of a film which subverts the narrative is The Dark Knight. This film starts with a bank robbery.