Michael Richards created one of television's zaniest comic characters, Cosmo Kramer, the eccentric, wire-haired neighbour in Seinfeld. But how well suited is he for the role of the psychotic mass murderer, Jonathan Brewster, in a new production of the classic black farce Arsenic and Old Lace? Tom Sutcliffe and guests give their verdict on that as well as the new Spike Jonze film, Adaptation.
