From the novelty sized cake to a giant samurai sword to cut it with and thousands of screaming fans, almost everything seemed in place at the South Korean premiere of Iron Man 3 and Robert Downey Jr.’s birthday celebration – except his fly.
The star narrowly missed exposing himself on Thursday night after he forgot to pull up the zipper of his trousers.
Scroll down for video…
Coming undone: Robert forgot to zip his fly before hitting the red carpet for the premiere of Iron Man 3 in Seoul, South Korea on April 4
Celebrating his 48th birthday, the star walked the red carpet meeting fans, doing interviews and even dancing Gangnam style but Robert failed to notice his zipper was down.
Wardrobe malfunction: The star failed to notice his zipper was down
The birthday boy went for a black tuxedo with a modern twist that featured no bow tie but a white shirt with a black collar giving the illusion he was wearing one.
The Iron Man star teamed the unusual shirt with a black suit jacket with a satin lapel, and non-zippered suit pants with satin panels down the side.
Giving his look an over the top feel – just as his eccentric millionaire character Tony Stark would do – Robert added some serious pumped up kicks.
Even though he clearly put a lot of thought into his look, somehow the Avengers star forgot to zip his fly.
But the wardrobe malfunction hardly marred his birthday celebrations.
Thousands of fans flocked to the airport for the actor’s touch down in Seoul late Wednesday and even more lined the red carpet with banners and gifts for their idol.
South Korea is fast becoming a very important box office for action films in particular and to recognise this those behind the third installment of the Iron Man series held a premiere in the capital.
The film will even open in threatres in South Korea on April 25 – a week before the United States.
Massive fan base: Thousands of fans flocked to the airport for the actor’s touch down in Seoul late Wednesday and even more lined the red carpet with banners and gifts for their idol
Speaking to reporters at the event, Robert said he could have never imagined the story about a selfish millionaire turned bionic hero could have become so popular with fans.
The film’s star told reporters: ‘Five years ago, I had really no idea whether it was going to be embraced by the public or not.’
‘I find myself looking at this poster and still sometimes wondering how this would happen. So my relationship over the years has become one of, a kind of increasing humility and a lot of gratitude.’
Cheer up: The actor looked a little glumly at his cake, perhaps feeling a bit sad about eating the mini version of himself
Show no mercy: The star cut his giant cake with an equally large sword
This instalment will see Stark’s girlfriend, longtime associate, and personal assistant, Pepper Potts played by Gwyneth Paltrow, steps into heavy action.
Iron Man 3 unfolds as billionaire playboy and engineer’s world is torn apart by a formidable terrorist called the Mandarin.
Urging fans to go see the Shane Black film, Robert added: ‘I’m a pretty tough critic on these things and I think this third one is really worth a couple of hours to spend to go to see at a theatre.’