Sitting among BBC's best 100 films of the 21st century, and the Fumbler Hall of Fame, Alfonso CuarĂ³n's Children of Men is a masterclass in filmmaking. There is SO MUCH to learn from here, and this movie is not even on most people's radars. Julianne Moore and Michael Caine add some familiarity to a great cast, but be warned: no one is safe. Very odd, what happens in a world without children's voices.