"The Graham Norton Show," about an embarrassing experience from when he was 15.

You have to give him credit for the ... balls? ... to tell the story, since he was sitting next to legends Liam Neeson and Helen Mirren. Graham Norton found the story hilarious, but Liam Neeson -- did he not approve? He was pretty stone-faced throughout.

You should watch the clip below to see Jamie Dornan tell his story. Basically, Dornan claims he was a very young-looking teen with no game. "I was 15, I looked about 7. I had no hair or anything." He was balancing playing rugby and school, with amateur dramatics on the side. There was one day when he had a role as a waiter in "The Cherry Orchard" and there was a party for the rugby game after the play. For the play, he was given a "black, very acrylic, highly flammable wig" applied to his face to make him look older.

Guess what he decided to do with that wig after the play and before the party? Here's what he just confessed:

"So I thought it would be a good idea after the curtain came down on this play, I was going to this party after. I might meet a girl and maybe she drops a hand... [The audience laughed.] So I had the idea to maybe cut off some extra hair off the very -- by the way, I was a very fair child. I had blond hair. So I went into the dressing room and I cut off all this very curly jet black hair, cut it in a wee pile and got my [glue stick] and taped it on there, stuffed it. And I remember standing in front of the mirror going, 'That looks all right.'"

Graham Norton howled. As it turns out, Dornan went to the party and managed to kiss a girl but it never went further than that. "And thank God it didn't," Dornan now says.

Helen Mirren wanted to know if the wig removal was painful. Both physically and emotionally painful, Dornan explained, because he had about "three naturally evolved pubes" at that point, and off they went when he removed the wig.

Watch the full video:By the way, you should also watch this video with Helen Mirren and Liam Neeson. Did you know they lived together and were "a serious item" for a while? What a shame they didn't last, but still... "Fifty Shades Freed" opens February 9th. Dame Helen Mirren's "Winchester" opens February 2nd. Liam Neeson's "The Commuter" is now in theaters.

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