During the wedding reception of Bond and Tracy, which takes place at Draco's estate in Portugal in one of the last scenes in On Her Majesty's Secret Service, Draco and M find time to chat together and exchange a few business secrets in the garden. Despite being enemies in business, with Draco heading one of the biggest crime syndicates in Europe and M being responsible for the killing of three of Draco's best operatives, the competitors have put aside their rivalry on Bond's wedding day.
The steps where M and Draco were filmed drinking champagne and talking are located in the garden of the estate Herdado do Zambujal which was Draco's home in Portugal, in the film, covered in the earlier post here. The steps can be found immediately to the right of the main house coming from the entrance gate.
M talks to Draco about an operation known as "the bullion job" from November 1964 and is fascinated to know how much money Draco got away with at the time. The fact that it is called the bullion job and went down in 1964 can very well be a subtle reference to Goldfinger (produced in 1964) and maybe a hint that Draco was somehow involved with Goldfinger.
"-Yes, November 64, the bullion job! You got away with quite a chunk in the haul. Tell me, I've always wondered..."
- M to Draco -