ShowbizStar signings and celebrity witsKatie Campbell|Metro Life11 April 2012SigningsEntertaining with Paul BurrelL Remember that naff guide Entertaining With Style that Paul Burrell published a few years back, purporting to help out with those all-important etiquette problems such as which glass to drink what out of and where to put a globe artichoke? Well here's another chance to meet the butler whose gravy train - sorry, boat - seems to have landed. David Essex The songster who brought you 'Gonna Make You A Star' will be signing copies of his autobiography, A Charmed Life. TalksMaterial WorldsFilm history professor Sue Harper gives a lecture on costume and creativity in British cinema. Art & architecture City of London ChurchesJulian Litten talks about the churches that Christopher Wren reconstructed after the Great Fire of 1666. Old Masters and Young Mistresses Laurence Bradbury gives a talk on this perennially popular subject. With slides. OthersNational Theatre's Quiz This is the 20th annual theatre quiz, a contest in which celeb contestants from two different productions, this time She Stoops To Conquer and Anything Goes, pit their wits against one another. Chaired by Emma Freud.National Theatre: Olivier South Bank, SE1 (020-7452 3020). Fri 20 Dec, 6pm, £3.50.MORE ABOUTBiographyCity Of Westminster BoroughOxford Street (London)Tate Britain