Former 20th Century Society director Clinton Greyn has recently reverted to his thespian roots. He has been appearing as the nuclear physicist Niels Bohr in the well received National Theatre production of 'Copenhagen' at the Duchess Theatre. There are matinees on 5 and 26 October, and on each subsequent Thursday until further notice. It all makes a change from Clinton's recent role playing a paterfamilias in a building society advertisement on Dutch television. He tells me his now 'Bohr-ing for Britain'.