Intimate footage of the Queen as a young child has been released for the first time.
In the previously unseen films, the monarch is seen dancing, racing, swimming and pillow fighting with her family.
Movies of the royals as you've never seen them before are the highlight of a new exhibition inside Buckingham Palace this summer.
The Royal Childhood Exhibition features footage shot by the family themselves of the Queen as a little girl and as a young mother playing with her own children.
The film footage shows the young Princess Elizabeth enjoying performing dance routines with her sister Margaret and they are shown a number of times performing.
In one clip they are seen dancing on a wall at Royal Lodge in Windsor Great Park, and in another wearing matching green dresses and moving in unison as a pet corgi watches intently.
A pillow fight is also captured on film with the Queen and her sister playfully attacking family friend Arthur Penn.
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Also on display is a cupboard door featuring pencil markings recording the height of royal children, from Princesses Elizabeth and Margaret to Charles, Anne and Andrew.
On 13 June 1936, the 10-year-old future Queen was recorded as 4ft 4ins tall, while Margaret, aged six, stood at 3ft 6ins and quarter.
From today (Friday), tourists paying £19.75 will be able to walk through the State Rooms of Buckingham Palace where more than 150 objects relating to 25 royal children from George IV in 1763 to today's baby Prince George are on view.
Giving an early glimpse of his love for conservation, five-year-old William's geography school book shows his drawings of butterflies with the words: "These creatures live in the jungle; monkeys, frogs, parrots, crocodiles, lizards, humming birds, butterflies."
Presents given to Prince George are also on display, including a rocking horse, polo mallet and blue Alpaca wool blanket given to him on his birth a year ago by President Obama and his wife Michelle. T
The polo mallet has a head made from the branch of an oak tree that once stood on the South Lawn of the White House.
Prince George's christening robe, the programme of his christening and the silver-gilt Lilt Font he was baptised with last October are also on display, along with the easel that announced his birth.
Curator Anna Reynolds, who has been working on the exhibition since last October, said: "There's an interest in royal children at the moment, so we felt that this was a good year to do it.
"We looked through a large amount of private film footage that's generally kept in the royal archives.
"I think you get a sense of the fun side of royal childhood and the close relationship between the parents and children.
"It's such a privelege to get to see these personal items and we hope that will make the exhibition really appeal. This gives such an intimate view into them as children.
"I think it's easy to forget that Buckingham Palace is a family home and the Queen was a child like all of us and she and her sister have a sibling relationship that is very obviously affectionate.
"I think that comes across in the film that they have a very happy, very close relationship and I think that's what will be particularly interesting and perhaps touching to people."
Various toy cars, tractors and tricycles ridden by royal children are also on display, including the ultimate young boys' toy - a scaled down version of James Bond's DB5 sports car.
Presented to a six-year-old Duke of York in 1966, the car, featured in the movies Goldfinger and Thunderball, has rotating number plates, a pop-up bullet-proof shield, a working smoke screen and electric water jets hidden in the rear reflectors.
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