Robert Downey Jr. has helped raise over £1 million for a UK children’s hospice by auctioning off a once-in-a-lifetime chance to be the Iron Man star’s date to his next movie premiere. The auction raises funds for Julia’s House, a Dorset based children’s hospice of which Guy Ritchie is a patron.

Robert Downey JrRobert Downey Jr has helped raise over £1million for the Dorset based charity.

One lucky fan will not only get the chance to join Robert on the red carpet, but will also be flown with a friend to Los Angeles where the actor will then proceed to “awesome the crap out of you.”

"Have you had the best night of your life on earth ever yet? Well you could, with me, for a good cause,” the actor said in a video announcing the auction last month.

"Here's the deal - you donate $10 or more for a chance to win the RJD experience. I correspondingly fly you and a friend to L.A., put you up in a five-star hotel and proceed to awesome the crap out of you.”

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"I'll take you indoor skydiving, on a helicopter tour, a pit stop at Randy's Donuts and after riding your sugar high all the way to a fitting for a tux or gown, we are going to meet up for a bit of pre-premiere caviar.”

"We'll giggle, chat, take pictures, and perhaps even engage in a battle of wits - kidding, or am I?” he continued. "And then right before sunset we make a grand entrance at the venue on the red carpet, and then you become one of the first people on earth to see Avengers: Age of Ultron.”

"All proceeds go towards funding Julia's House. This place is amazing. It's a hospice for children with terminal illnesses. It's a win-win.” The raffle was organised by Omaze, an US based organisation that raises money for charities by hosting raffles for celebrity experiences.

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The actor is said to have heard about the charity after attending a fundraising event at the home of Julia's House patron Guy Ritchie.

“We are so grateful to Robert Downey Jr. for helping with our dream to increase our respite and end of life care and reach more children over a wider geographical area, principally by building a Wiltshire children’s hospice and extending our home care in the county,” said Martin Edwards the CEO of Julia's House.

"It's amazing when someone in so much demand is so focused on giving something back. He's our superhero - we love you Iron Man."