Henry Cavill makes a dapper appearance at Man From U.N.C.L.E. premiere... after admitting his shame over getting excited during sex scene

PUBLISHED: 21:57, 7 August 2015 | UPDATED: 22:42, 7 August 2015

He plays a mysterious spy in his friend Guy Ritchie's new film The Man From U.N.C.L.E.

And appearing on the red carpet for the movie's premiere on Friday, actor Henry Cavill looked every inch the international man of mystery.

However, just hours earlier, the actor made some rather embarrassing confessions about his time shooting his breakthrough role in raunchy TV hit The Tudors.

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Leading man: Henry Cavill put on a dapper display as he attended the premiere for The Man From U.N.C.L.E. on Friday at Somerset House in London

Speaking ahead of the premiere at Somerset House, the 32-year-old admitted he had to apologise to his female co-star after becoming aroused while acting out a romp.

'It's only happened to me once, and it was very embarrassing,' he told Men's Fitness, describing the moment he became more than a little excited while in the presence of a certain busty actress.

'A girl had to be on top of me, she had spectacular breasts, and I hadn't rearranged my stuff into a harmless position.

Henry Cavill looks dapper in blue bomber at premiere

Stylish: The actor was cool in a blue bomber jacket, matching shirt and trousers as he walked the red carpet

'She's basically rubbing herself all over me and, um, it got a bit hard.'

Stepping on to the red carpet with the film's director, who made his first appearance with his new wife Jacqui Ainsley, Cavill appeared to have brushed off the admission.

Dressed in blue trousers, a blue shirt and a bomber jacket of the same hue, the Jersey-born actor maintained a cool exterior as he mingled with co-stars.

Newly wed Guy Ritchie and Jacqui Ainsley grace red carpet

Colleagues: Guy Ritchie chatted with his leading man at the premiere on Friday night which came just a week after the director tied the knot with Jacqui Ainsley

Talent: Cavill admitted to struggling in his attempts at an American accent, claiming Ritchie jumped in several times to ask him to amend it

Cavill takes on the role of Napoleon Solo in the film which follows two fictional spies as they embark on espionage at the height of the Cold War.

He is joined in the film by Armie Hammer, Hugh Grant and Elizabeth Debicki, Alicia Vikander.

Cavill's character is forced to team up with his KGB counterpart Illya Kuryakin, played by Hammer, to prevent the detonation of an atom bomb.

Alongside his sex scene confession, Cavill previously admitted to struggling in his attempts at an American accent.

'I definitely struggled at the beginning because we hadn't found the accent by the time we started shooting,' he told Glamour.

'When we were shooting Guy would come in and say "No, that sounds wrong," or "this sounds wrong" or "try and say the word this way" and because there's no uniform structure to it, it became very difficult to perform and you become very conscious of speaking as opposed to acting and feeling.

'Eventually we found it about a quarter of the way through the movie because we found a way of speaking that was consistent.'

Henry Cavill in the new trailer for The Man from U.N.C.L.E.