Sienna Miller has revealed she was pregnant throughout filming for new divorce drama *War*, reaching 35 weeks by the end of the demanding shoot
She plays Carla Duval opposite Dominic West, whose character is her estranged husband in a courtroom battle between two elite London law firms
Phoebe Fox was also pregnant during production, with her pregnancy incorporated into the storyline
Miller welcomed her third child in April with Oli Green
*War* will premiere on Sky and Now in the UK on 2 October.