Truly, Madly, Cheaply!: British B Movies (2008)

Film historian Matthew Sweet presents a documentary reappraising over half a century of British B movies, from John Mills on the wrong end of a whipping in The Lash through to the giant gorilla Konga running amok in Croydon. Sweet argues that the cheapness of these films, unlike the A film, ensured they often portrayed Britain as it really was, even when (as in the case of 1970s sex movies) that wasn't necessarily a nice place to be. John Mortimer and Michael Winner are among the interviewees.