Knightley makes Broadway debut as 'unhappy wife'

Keira Knightley makes her Broadway debut in a new adaptation of Emile Zola's Therese Raquin, taking to the stage as a woman trapped in a loveless marriage, who begins an affair with her husband's friend.

The British actress, who has been nominated twice for an Oscar, portrays the title character in the play based on the 1867 novel.

On the first night of previews on Oct 1, an audience member interrupted the performance by shouting at Knightley and tossing flowers on stage.