Motifs in the James Bond film series the degree to which Bond girls are pivotal to propelling the plot forward varies from one film to the next. Five of the Bond girls are "bad" girls (or at least working for the villain) who turn "good" (or switch sides) usually due to Bond's influence. Bond has fallen in love with only Tracy di Vicenzo in "On Her Majesty's Secret Service" and Vesper Lynd in "Casino Royale", but both of them die at or near the end of the respective films. Roald Dahl, a screenwriter of "You Only Live Twice", said he was given a formula to work to
Tracy Bond Tracy Bond Teresa "Tracy" Bond (born Teresa "Tracy" Draco, and also known as the Contessa Teresa di Vicenzo) is a fictional character and the main Bond girl in the 1963 James Bond novel "On Her Majesty's Secret Service", and its 1969 film adaptation. She is the only Bond girl to actually marry 007. In the film version, Tracy is played by actress Diana Rigg. Born Teresa Draco in 1943, she is the only child of Marc-Ange Draco, the head of the Union Corse, a powerful Corsican crime syndicate – not quite as large as SPECTRE, but with substantially larger "legal"