DVD: Inception, For retail & rental (Warner)

Christopher Nolan's Inception is that rare thing, a science-fiction blockbuster that isn't based on a comic or a videogame, but on the writer-director's own bracingly brainy, swaggeringly ambitious, uncompromising ideas.

Leonardo DeCaprio is its tragic hero, an industrial spy who can, for a fee, sneak into other people's dreams. It's a concept that affords plenty of existential chin-stroking, and even more explosive action.