Keira Knightley made her Broadway debut in a preview performance of Thérèse Raquin on Thursday amidst a bit of chaos. A man in the balcony shouted at the actress, then threw flowers as security took him away.

New York City police were notified of the incident around 8:15 p.m. on Thursday. They decided to take the man who shouted at Knightley to a hospital for a mental evaluation. The man, whose name hasn’t been released, was neither arrested nor charged with a crime.

“Keira, none of this is real!” and “Will you marry me?” are among the things the audience member shouted at Keira Knightley early in her performance, the show eventually went on. She reportedly remained calm and professional throughout the incident.

Keira Knightley's Broadway Debut Interrupted By Yelling Audience Member http://t.co/ddFu3cXQ1B pic.twitter.com/rCV9Svwp04

— Hollywood Reporter (@THR) October 3, 2015

Prior to making her Broadway debut, Knightley starred in The Imitation Game, for which she receivedthe Academy Award for Best Supporting Actress. Her other films include Pride & Prejudice, Seeking A Friend for the End of the World, Begin Again and the Pirates of the Caribbean films.

Keira Knightley did an excellent job of remaining calm during the incident that took place during her Broadway debut. Less seasoned actresses might have become visibly shaken by such an ordeal, and been unable to resume their performance.

Are you a Keira Knightley fan? Would you like to check her out on Broadway in Thérèse Raquin?

The show officially opens on October 29th.