Crowdsourced filmmaking is still largely unexplored as a creative process and as a social phenomenon. In recent months it has started to spread rapidly throughout the arts community as a cheaper and more democratic mode of expression than traditional filmmaking, and often manages to ignite unexpected tangential narratives and new meanings. The Lifemirror project is a crowdsourcing tool and cinematic system designed to enable collective creativity and filmic argumentation based on geo- time tracked video through mobile phones.