Prince Harry, Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge, attend the Royal World Premiere of 'Spectre' at Royal Albert Hall on October 26, 2015 in London, England.

Britain's Catherine, Duchess of Cambridge and Britain's William, Duke of Cambridge arrive for the world premiere of the new James Bond film 'Spectre' at the Royal Albert Hall in London on October 26, 2015. The film is directed by Sam Mendes and sees Daniel Craig play suave MI6 spy 007 for a fourth time.

(L-R) Britain's Prince Harry, producer Barbara Broccoli and British director Sam Mendes talk on arrival for the world premiere of the new James Bond film 'Spectre' at the Royal Albert Hall in London on October 26, 2015.

 Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge, and Prince Harry attend the Royal World Premiere of 'Spectre' at Royal Albert Hall on October 26, 2015 in London, England

Prince William, Duke of Cambridge, and Catherine, Duchess of Cambridge, attend the Royal World Premiere of 'Spectre' at Royal Albert Hall on October 26, 2015 in London, England. 

 (L to R) Prince Harry, Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge, attend the Royal World Premiere of 'Spectre' at Royal Albert Hall on October 26, 2015 in London, England.

 (L to R) Prince Harry, Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge, attend the Royal World Premiere of 'Spectre' at Royal Albert Hall on October 26, 2015 in London, England.

Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge, attend the Royal World Premiere of 'Spectre' at Royal Albert Hall on October 26, 2015 in London, England. 

Catherine, Duchess of Cambridge, and Prince William, Duke of Cambridge, attend the Royal World Premiere of 'Spectre' at Royal Albert Hall on October 26, 2015 in London, England.

(L to R) Prince Harry, Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge, attend the Royal World Premiere of 'Spectre' at Royal Albert Hall on October 26, 2015 in London, England.

 (L to R) Prince Harry, Catherine, Duchess of Cambridge. Prince William, Duke of Cambridge, guest, Michael G. Wilson, Barbara Broccoli and Sam Mendes attend the Royal World Premiere of 'Spectre' at Royal Albert Hall on October 26, 2015 in London, England. 

(L to R) Prince Harry, Catherine, Duchess of Cambridge. Prince William, Duke of Cambridge, guest, Michael G. Wilson and Sam Mendes attend the Royal World Premiere of 'Spectre' at Royal Albert Hall on October 26, 2015 in London, England.

Prince Harry attend the Royal World Premiere of 'Spectre' at Royal Albert Hall on October 26, 2015 in London, England.

Prince Harry attends the Royal World Premiere of 'Spectre' at Royal Albert Hall on October 26, 2015 in London, England.

Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge, attend the Royal World Premiere of 'Spectre' at Royal Albert Hall on October 26, 2015 in London, England.

Catherine, Duchess of Cambridge attends The Cinema and Television Benevolent Fund's Royal Film Performance 2015 of the 24th James Bond Adventure, 'Spectre' at Royal Albert Hall on October 26, 2015 in London, England.

Catherine, Duchess of Cambridge (2ndR) and Prince William, Duke of Cambridge (R) meet charity representatives as they attend The Cinema and Television Benevolent Fund's Royal Film Performance 2015 of the 24th James Bond Adventure, 'Spectre' at Royal Albert Hall on October 26, 2015 in London, England.

 Director Sam Mendes (L), producer Barbara Broccoli (2ndR), Prince William, Duke of Cambridge (2ndL) and Catherine, Duchess of Cambridge (R) attend The Cinema and Television Benevolent Fund's Royal Film Performance 2015 of the 24th James Bond Adventure, 'Spectre' at Royal Albert Hall on October 26, 2015 in London, England. 

Prince William, Duke of Cambridge (R) and Catherine, Duchess of Cambridge attend the Royal World Premiere of 'Spectre' at Royal Albert Hall on October 26, 2015 in London, England.

 Prince William, Duke of Cambridge (R) and Catherine, Duchess of Cambridge attend the Royal World Premiere of 'Spectre' at Royal Albert Hall on October 26, 2015 in London, England.

Prince William, Duke of Cambridge (R) and Catherine, Duchess of Cambridge attend the Royal World Premiere of 'Spectre' at Royal Albert Hall on October 26, 2015 in London, England.

 (L-R) Catherine, Duchess of Cambridge and Prince Harry attend The Cinema and Television Benevolent Fund's Royal Film Performance 2015 of the 24th James Bond Adventure, 'Spectre' at Royal Albert Hall on October 26, 2015 in London, England.

 (L-R) Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge and Prince Harry attend The Cinema and Television Benevolent Fund's Royal Film Performance 2015 of the 24th James Bond Adventure, 'Spectre' at Royal Albert Hall on October 26, 2015 in London, England.

Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge attend the Royal Film Performance of 'Spectre' at the Royal Albert Hall on October 26, 2015 in London, England.

Prince Harry, Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge attend the Royal Film Performance of 'Spectre' at the Royal Albert Hall on October 26, 2015 in London, England.

 Prince Williams, Duke of Cambridge and Catherine, Duchess of Cambridge attend the Royal World Premiere of 'Spectre' at Royal Albert Hall on October 26, 2015 in London, England.

 Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge attend the Royal Film Performance of 'Spectre' at the Royal Albert Hall on October 26, 2015 in London, England.

Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge attend the Royal Film Performance of 'Spectre' at the Royal Albert Hall on October 26, 2015 in London, England. 

Prince William, Duke of Cambridge, Prince Harry and Catherine, Duchess of Cambridge attend the Royal Film Performance of 'Spectre'at Royal Albert Hall on October 26, 2015 in London, England

The Duchess appeared in high-spirits as she arrived at the Spectre premiere at the Royal Albert Hall on October 26, 2015 in London, England. 

Kate looked sophisticated in the pale blue gown by her favorite evening wear designer Jenny Packham

The Duchess of Cambridge and Sam Mendes make their way into the Royal Albert Hall in Kensington for the Royal World Premiere of 'Spectre' on October 26, 2015 in London, England

The Duchess of Cambridge paired her Jenny Packham gown with platform high heels by Jimmy Choo.

Daring Duchess of Cambridge goes braless in pale blue floor-length Jenny Packham gown and diamond accessories at the world premiere of Spectre

Catherine, Duchess of Cambridge embellished clutch bag detail as she attends the world premiere of Spectre

Kate appeared to leave her underwear at home as she flashed a hint of her lower back in the elegant gown during the Royal World Premiere of 'Spectre' on October 26, 2015 in London, England

The Duchess of Cambridge holds her jewel-encrusted clutch bag as she makes her way into the film screening.  Instead of leaving her famous brunette curls down, she pulled them up into an elaborate plaited bun.

Prince William, Duke of Cambridge, the Duchess of Cambridge and Prince Harry walk with US producer Barbara Broccoli, US producer Michael G. Wilson and British director Sam Mendes

Appearing to go braless, Kate dazzled in a bespoke diaphanous pale blue full-length gown by her go-to evening wear designer, Jenny Packham. 

Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge opted for a Jenny Packham gown for the occasion, choosing a piece in a wintry pastel blue with beautiful waist embellishment.

The Duchess of Cambridge and director Sam Mendes climb the stairs for the Royal World Premier of Spectre, with Kate showing a hint of leg and her glitzy Jimmy Choos.

At the Duchess's side - dressed in Bond-style black tie - were her husband, Prince William, and brother-in-law Prince Harry

 The glamorous Duchess of Cambridge meet Director Sam Mendes.

The Duchess was a picture of elegance at the star-studded film premiere.

 The Duke and Duchess of Cambridge were met by crowds of well-wishers as they arrived at the premiere

Prince William and Kate looked a picture of elegance at the James Bond premiere in her Jenny Packham gown and jewel-encrusted accessories



(L-R) Prince Harry, Catherine, Duchess of Cambridge opted for a Jenny Packham gown for the occasion, choosing a piece in a wintry pastel blue with beautiful waist embellishment and Prince William, Duke of Cambridge as they attends for the world premiere of Spectre
 

With a host of Bond Girls to compete with, the Duchess of Cambridge turned on the glitz at the world premiere of the new 007 film Spectre

Prince Harry greeted by photographers and excited fans as he walk the red carpet

To top off her look, Kate wore earrings by Robinson Pelham that retail at £14,300
 

The Duchess of Cambridge, center, shares a joke with actor Daniel Craig, right, and director Sam Mendes, left (not seen)

Kate Middleton smiles as she walk the red carpet at the glitzy and glamorous event

Kate Middleton and Prince William walk red carpet for world premiere of latest James Bond film Spectre in London

Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge are greeted by photographers and excited fans as they walk the red carpet