HBO has come on board as co-producer of BBC’s miniseries adaptation of novel The Casual Vacancy, from Harry Potter author J.K. Rowling. The three-hour mini, written by Sarah Phelps (EastEnders), produced by Ruth Kenley-Letts (The Hour) and to be directed by Jonny Campbell (In the Flesh), will begin production this summer in South West England. Published in 2012, Casual Vacancy centers on Pagford, a seemingly idyllic English village with a cobbled market square and ancient abbey. Behind the pretty façade, however, is a town at war: Rich at war with poor, teenagers at war with their parents, wives at war with their husbands, teachers at war with their pupils. The three-part mini is produced by Bronte Film and Television, the independent production company run by Rowling and Neil Blair, who is executive producing with Paul Trijbits (Saving Mr. Banks) and Rick Senat.