In the movie SkyFall we see M (Judi Dench), James Bond (Daniel Craig) and Silva (Javier Bardem) drink a fine whisky: The Macallan.
As we know from previous films, M likes a strong drink. And in SkyFall M drinks another fine whisky: The Macallan. We can’t see yet which exact age the whisky has, but looking at the shape of he bottle and colors on the label, it is definitely The Macallan Sherry Oak whisky, either 10-, 12- or 18-year-old. We would guess M has a delicate taste and prefers the 18-year-old, but it might also be the more popular 12-year-old, or even the 10-year-old if MI6 has had some budget cuts. The 18-year-old is three times as expensive as the 12-year-old.
We also see James Bond himself sip some Macallan: once while enjoying death (he grabs a bottle of Fine Oak 10 Year Old from the bar, and in the scene that follows in M’s apartment Bond drinks another bottle (a 10 Year Old but the one with the white label, see pictures on the left). Based on the glimpse of the bottle and label seen in SkyFall, it looks like the version of the label where the bottom half is light-blue or light grey (see images left, below). It’s not yet confirmed which exact version (10, 12 or 18) he drinks.