Molly Peters and Sean Connery in a scene from the James Bond 1965 film, "Thunderball." Initially, Bond girls were part of the aesthetic of the series. They had more transient roles. The film is included in the MGM and 20th Century Fox Home Entertainment Blu-Ray "Bond 50" anniversary set.

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Sophie Marceau, left, and Pierce Brosnan in a scene from the James Bond film, "The World Is Not Enough." Modern Bond girls also present a more formidable challenge to the suave secret agent. The film is included in the MGM and 20th Century Fox Home Entertainment Blu-Ray "Bond 50" anniversary set.

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Roger Moore, center, with Maud Adams, left, and Britt Ekland, from the James Bond 1974 film, "The Man with the Golden Gun." Whatever their role, Bond girls still must be inarguably beautiful. The film is included in the MGM and 20th Century Fox Home Entertainment Blu-Ray "Bond 50" anniversary set.

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Ursula Andress in a scene from the James Bond 1962 film, "Dr. No."

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Karin Dor in a scene from the James Bond 1967 film, "You Only Live Twice." Initially, Bond girls were part of the aesthetic of the series. They had more transient roles. The film is included in the MGM and 20th Century Fox Home Entertainment Blu-Ray "Bond 50" anniversary set.

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Jane Seymour, left, and Roger Moore, in the James Bond 1973 film, "Live and Let Die."

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Jill St. John from the James Bond 1971 film, "Diamonds Are Forever."

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Halle Berry in a scene from the James Bond 2002 film, "Die Another Day." Who qualifies as a Bond girl has also changed over the years, as the blue-eyed, buxom blonde has given way to more diverse leading ladies, including Michelle Yeoh ("Tomorrow Never Dies") and Halle Berry ("Die Another Day").

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Honor Blackman as Pussy Galore in the James Bond 1995 film, "GoldenEye." Initially, Bond girls were part of the aesthetic of the series. The film is included in the MGM and 20th Century Fox Home Entertainment Blu-Ray "Bond 50" anniversary set.

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Talisa Soto, left, and Carey Lowell in the James Bond 1989 film, "Licence to Kill." Always glamorous and sophisticated, yet uniquely susceptible to James Bond's flirtations, the Bond girl over the years has become as compelling as Agent 007 himself.

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Daniel Craig, right, appears with Eva Green in the 2006 James Bond film, "Casino Royale." Whatever their role, Bond girls still must be inarguably beautiful.

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Judi Dench plays the head of MI6, "M," in the newest James Bond film "Casino Royale." The greatest change in women's position in the Bond saga, is that the agent's boss, M, is a woman.

Sony Pictures

In this Dec. 22, 1965 file photo, Claudine Auger, the latest James Bond girl, stars with Sean Connery in the James Bond 1965 film, "Thunderball." Whatever heir role, Bond girls must always be inarguably beautiful.

Associated Press

Pierce Brosnan, as Bond, and Michelle Yeoh, as the Bond-girl, Wai Lin, in a scene from the James Bond 1997 movie "Tomorrow Never Dies."

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In this Aug. 17, 1984 file photo, actor Roger Moore, alias British secret agent James Bond, is seen with his co-stars Tanya Roberts, and Grace Jones, right, in front of Chateau de Chantilly, on the set of the 007 action film "A View to a Kill," near Paris, France.

Associated Press