Keira Knightley was making her Broadway debut in the first preview performance of Thérèse Raquin when she was interrupted by a man who began screaming at her in the middle of the scene, AP reports. The fan reportedly stood up in the theater’s mezzanine level and announced his love for the actress; when she stayed in character, he allegedly shouted out, “Five seconds is too long to wait for a response!” Before he could be escorted out by security, the man was able to throw a bouquet of flowers onto the stage, where they were soon kicked off by Knightley’s co-star Gabriel Ebert. (After a brief break, the show went on.) Bizarrely, the incident occurred at Broadway’s Studio 54 theater, the same location where Shia LaBeouf drunkenly interrupted a performance of Cabaret last year. Future performances of Thérèse Raquin will see increased security.