12/13/2011 10:16 pm ET Updated Dec 15, 2011

William And Kate Movie To Air On NBC

Prince William and Kate Middleton's wedding was one of the most highly-anticipated nuptials of the year -- with an estimated 24.5 million viewers tuning in to witness the couple tie the knot on television.

But although the pair have been in the spotlight since their Big Day in April, they've managed to keep their private life surprisingly private.

That is set to change--sort of. A new documentary, "William And Kate: Inside The Royal Wedding," promises to take an intimate look inside the couple's nuptials while documenting the first six months of their lives together. The film, created by royal documentarian Matt Drury and Getty photographer Chris Jackson, also includes interviews with some of the couple's closest friends.

In this preview clip, we get an in-depth look at Kate Middleton's life and how she transformed from an ordinary girl to the Duchess of Cambridge.

"William And Kate: Inside The Royal Marriage" airs on NBC Tuesday at 8 PM EST.