Alfonso Cuaron is a confirmed crazy person. At least, that's the conclusion we have to draw after watching the special features for his underrated dystopian sci-fi movie Children Of Men, a classic of the modern era if we've ever seen one. For the most part Children Of Men shirks Hollywood bluster in favour of a bleak, character-driven film about a world where infertility has struck all men and women, and this hopelessness about the future of the human race has permeated through into a grimy, unhappy society full of political unrest and heavy-handed parallels to Guantanamo Bay and the war in Iraq. Still, Cuaron finds room for a couple of boss action sequences amidst all the glum faces and tears, as Clive Owen's civil servant Theo Faron is charged with shepherding a surprisingly pregnant young girl to safety. The first bit of resistance Theo comes up against is the radical nutjobs who want to use the girl as a pawn in their fight against the repressive British government. The gang scarper under cover of darkness in a crappy Fiat, and are instantly besieged by said nutjobs on foot and bike, as they try to grab the girl and put Theo out of comission. It's a thrilling scene, the tension ratcheted up by the illusion that it's one long, uninterrupted shot (something that happens a couple of other times throughout Children Of Men), all filmed from within the car. How did they do it? More CGI and green screen? Nope, they built a ridiculous high-tech and complex right that involved camera men hiding in the floor, seats falling back so actors would leave room for other cameras, and a roof that could come off for other shots. Seriously, just look at it. It's crazy. And brilliant.