India, Aug. 15 -- Sophie Turner once accidentally caused a celebrity couple's break-up. During Thursday's appearance on Late Night with Seth Meyers, the Game of Thrones star recalled how her simple gesture led to an A-list couple, whom she did not name, calling off their engagement. Shocked by the incident, the 29-year-old joked she was not aware "I held his power."

Detailing the experience, Turner told host Seth Meyers that she attended a San Diego Comic-Con after-party, where she had a "quite crazy" evening. She explained that things "went really south really quick" when a childhood friend asked her for a favour.

"She saw this actor she loved," Turner said of her friend, who then begged her to "say hi" to him. Upon her request, the Da...