After combing through the SC archives, it appears that there has only been one horror movie scotch sighting. Your dreams of a week or month of watching clips of people drinking distilled spirits in horror movies has been dashed. Let's hope you're able pick up the pieces and begin to move on.
This is from the 2009 remake of Friday the 13th. The actual scene in which the Lagavulin appears is very dark. I tried adjusting the brightness as much as possible during editing without the scene looking too distorted but it is what it is.