# Release of legal drama series ‘War’

> Live situation record from CLSTR: https://clstr.news/situations/release-of-legal-drama-series-war
> Updated: 2026-08-15T21:05:00.000Z. Sources: 11. Developments: 3.

HBO and Sky have released the first teaser, images, and trailer for ‘War’, an eight-part legal drama anthology series created by George Kay. The series is scheduled to premiere on October 1, 2026, on HBO and HBO Max in the United States, and on October 2 in the United Kingdom via Sky and the NOW streaming service. Further international rollouts are planned for Australia, Southeast Asia, Latin America, France, Belgium, Germany, Switzerland, and Austria.

Set in London, the first season follows the conflict between two law firms, Cathcarts & Sons and Taylor & Byrne, during the high-profile divorce of tech entrepreneur Morgan Henderson (Dominic West) and film star Carla Duval (Sienna Miller). The case is described as potentially being the “largest divorce trial in British legal history.” The ensemble cast includes Archie Renaux as ambitious junior lawyer Johnny Warren, alongside Phoebe Fox, James McArdle, Nina Sosanya, and Pip Torrens.

The production is a co-production involving New Pictures, Observatory Pictures, Sky, and HBO, with international sales handled by NBCUniversal Global TV Distribution. The first season will consist of eight weekly episodes airing on Thursdays. A second season has already been ordered and is expected to feature Marisa Tomei, Kelly Macdonald, and David Harewood.

## Timeline

### 2026-08-15: HBO Max announces legal drama ‘War’ starring Dominic West and Sienna Miller

HBO Max will premiere the legal drama series ‘War’ on October 1, 2026, starring Dominic West and Sienna Miller in a high-profile London divorce battle.

2 sources. https://clstr.news/cluster/hbo-max-announces-legal-drama-war-starring-dominic-west-and-sienna-miller

### 2026-08-12: HBO Max announces legal drama series ‘War’ starring Dominic West

HBO Max announced ‘War’, a new legal drama anthology series starring Dominic West and Sienna Miller, set to premiere on October 1, 2026.

2 sources. https://clstr.news/cluster/hbo-max-announces-legal-drama-series-war-starring-dominic-west

### 2026-08-06: HBO and Sky Launch Legal Drama “War” for October Premiere

HBO and Sky unveil the teaser for the legal drama War, starring Dominic West and Sienna Miller, set to premiere in early October on HBO/HBO Max (US) and Sky/NOW (UK).

7 sources. https://clstr.news/cluster/hbo-and-sky-launch-legal-drama-war-for-october-premiere

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Cite as: Release of legal drama series ‘War’. CLSTR, https://clstr.news/situations/release-of-legal-drama-series-war