DVD: Afterschool, For retail & rental (Network)

It's not uncommon for school to be portrayed on screen as the unhappiest days of your life, but it's rarely been done with such astonishing conviction as it is in this needle-sharp, pitch-black comedy drama set in an ivy-clad prep school not far from New York.

Pitched somewhere between Gus Van Sant's Elephant and Michael Haneke's Caché, its pupils are so callous, and its teachers so craven that adult viewers will be thanking their lucky stars they've been to their last assembly.