WAR

WAR is an eight-part legal drama created by George Kay for Sky and HBO. Sienna Miller plays movie star Carla Duval and Dominic West plays tech entrepreneur Morgan Henderson. Their high-profile divorce places rival London law firms Cathcarts & Sons and Taylor & Byrne on opposite sides. The lawyers’ own relationships and ambitions complicate the case. Archie Renaux plays young lawyer Johnny Warren; Phoebe Fox plays Serena Byrne, James McArdle plays Nicholas Taylor, Nina Sosanya plays Beatrice Ubosi and Pip Torrens plays St John Smallwood. Sky has ordered two seasons, with the first run unfolding across eight weekly episodes. The series begins Friday, October 2, 2026 on Sky and NOW in the UK. HBO is the US partner, but a precise American premiere date was not specified in Sky’s September 17 trailer announcement. The first official trailer presents the leads, competing legal teams and escalating publicity surrounding the divorce; it does not announce the outcome of the case. WAR is scripted fiction, not a documentary about an actual celebrity marriage.