Gameover is being uploaded onto youth websites including You Tube, Google Video and MySpace as part of the force's ‘Guns and Knives Take Lives' drive.
It features young people who suffer the serious consequences of a life dominated by street violence.
A spokeswoman said: ‘We shot the film in a style that young people can relate to. The production style is aimed at capturing the youth audience and mirrors the media in which they are interested - with lots of effects and high production values.'
The Gameover film can be downloaded at www.divacreative.co.uk.