Tories, bonking and naked tennis: David Tennant and the Rivals cast on bringing Jilly Cooper’s novel to screen

It’s been almost 40 years since Jilly Cooper released her scandalous, sex-filled novel ‘Rivals’, and now it’s finally been adapted for the small screen. Ellie Muir speaks to the cast about playing posh, and showrunner Dominic Treadwell-Collins tells her about the love letters he sent the author to try to convince her to come on board