Posted in: HBO, Sky One, TV | Tagged: warWar: HBO, Sky Preview West & Miller-Starring Legal Drama SeriesPremiering on October 1st, here's a teaser and images for HBO and Sky Originals' Dominic West and Sienna Miller-starring legal drama, War. Article Summary HBO and Sky Originals unveil the first teaser for War, a new legal drama starring Dominic West and Sienna Miller. War premieres October 1 on HBO at 9 pm ET/PT, with weekly episodes also streaming on HBO Max. On Thursday, HBO and Sky Originals released an official teaser and first-look images for their upcoming legal drama series, War. The series was initially given a two-season green light from HBO and Sky Originals, with production on the second season currently underway.