The screen star – who in real life has three children with cinematographer husband Daniel Moder – layered up with a white shirt over a cream top and teamed it with loose blue jeans.

Her long brunette locks weren’t glamorously styled at all to play Barbara Weston, a character in a family that overcomes certain differences when their alcoholic patriarch goes missing.

During the intense scene Ewan held Julia’s hand with great anticipation, as they walked down to a boat dock to identify a dead body by a Sheriff.

Mumsy appearance: The Pretty Woman actress looked rather dowdy as she recorded the intense scene where they had to identify a dead body by a Sheriff