Qua movie it's pretty poor, as everyone else has said, but it's worth a watch for two things. First is the great, always watchable Tod Slaughter in an atypical modern role, although he's as villainous as ever. Second is the view of post war London, shabby and dingy, with all the buildings still covered in a thick layer of black-grey-brown-green filth, the legacy of a century's industrial and domestic discharges.