Lena Headey Admits She Drunkenly Let a 'Game of Thrones' Spoiler Slip

We've learned over the past few years that HBO is extremely protective of Game of Thrones spoilers from being leaked. It has gotten to a point that one of the show's directors even described the set's environment as Gestapo-like due to the heightened security presence assuring secrets are kept at bay.

Just like the producers, the series' stars have done a great job at playing coy and answering Thrones-related questions as vaguely as possible, even to their own spouses!

However, slip-ups happen sometimes. Cersei Lannister actress Lena Headey recently revealed that one night, she drunkenly revealed a spoiler to friends. But, she joked that she went to great lengths--like her character would--to make sure they wouldn't speak.

"I think I've drunkenly done it to someone and then the next day, hunted them down and made them sign in blood not to say anything," Headey joked in an interview with Entertainment Tonight.

While she's very serious about not revealing any secrets, Headey admitted it's a bit annoying to be on guard at all times. "I think it's just frustrating when you do interviews for Thrones and actually can't say anything," she laughed.

Luckily for Headey and the other stars who are tired of biting their tongues, Game of Thrones' final season will arrive in two months. And after the season's six movie-like episodes are complete, they can finally speak freely.