Whether its docu-drama or thrillers, director Paul Greengrass, whose new Bourne movie opens this month, is one of cinema's surefire winners. By Vanessa Thorpe.

Rental and retail: This film puts you in the heart of events in the air and on the ground. It's terrifying but the story is told without malice and without special pleading. It just says: as far as we can tell, this is how it was and in its own quiet way, the film has done an extraordinary job of reconstruction and interpretation.

Hollywood's first attempt to deal with 9/11 has been praised for its sensitivity - and attacked for coming too soon. Oliver Burkeman hears from the makers of United 93.