Kit Harington's wife didn't speak to him for days after he told her the ending of "Game of Thrones".
The actor - who plays Jon Snow in the HBO fantasy epic - is married to former co-star Rose Leslie, whose character Ygritte was killed off in the fourth series, and she wasn't happy when he revealed how the highly anticipated eighth season will conclude.
Speaking on KISS Breakfast, Kit admitted: "I told my wife last year how it ended, and she wouldn't talk to me for about three days. And she'd asked!
"It's quite nice walking around, which will only happen for a few months before everyone's seen it, knowing. I know and no-one else does. I know how it wraps up. Yeah, I think it's gonna be groundbreaking."
While the 32-year-old star has promised big things for the finale, he refused to be drawn on whether he's happy with the ending the writers have settled on.
He explained: "It's a weird one to answer, that. I can't really answer whether I'm happy or not.
"I don't think it's about happy or sad really. I'm satisfied with what they did, but I don't know whether I'll be really satisfied until I see it."
Meanwhile, he previously admitted fans of the show - which will end in April this year - are going to be disappointed no matter what happens.
He said: "It's like when you finish a book, you're not happy it's over are you? You don't finish a good book and say, "I'm happy I finished that." But you have this grief that it's over, and it's exactly same with nine years doing this show. No matter how it ended, or how it does end, there's always this bit of you that's like, "oh"; there's this loss around it."
His co-star Maisie Williams - who appears as Arya Stark in the drama - has echoed the ssentiment, but added she hopes viewers enjoy it.
She said: "I don't know that anyone is going to be satisfied. No one wants it to end, you know, but I'm really proud of this final season. I've always felt ashamed to say things like that, but I am. I'm really proud of all the work we've put it, for me it's the right time. I hope people like it."