This children of men trailer video looks great. Alfonso Cuarón's (director of the movie) delivers an exciting plot, which will definitely keep on the edge of your seat: no baby has been born in the last 20 years, and humanity is taking it's last breath on Earth. One man (Clive Owen) can change this.
From the reviews on the net, it's going to be a hit. So look out for "Children of Men" on cinema. Meanwhile enjoy the trailer!