The opening credits include footage from Goldfinger, as well as an unused cut of a helicopter scene in From Russia with Love (1963) (helicopter). One of the Goldfinger scenes shown (Bond visiting Q Branch) isn't actually in the movie. Additionally, a putt shown is from a different POV than actually used.
The original UK release ended with "James Bond will return in 'On Her Majesty's Secret Service'" but by the time the film was released in America the decision had been made to make Thunderball next so the credits were changed accordingly.
THE END OF "GOLDFINGER" BUT JAMES BOND WILL BE BACK IN "THUNDERBALL"
The opening credits are a montage of scenes from the film projected over a gold-painted female corpse.