I also strongly suspect you watched "The Spy Who Came in From the Cold". If you enjoyed this movie and the way it is narrated, please do yourself a favor and watch all the BBC mini series from the 70ies/80ies based on John Le Carré books, namely "Tinker Tailor Soldier Spy", "Smiley's People", and "A Perfect Spy" (or read the books, John Le Carré is an excellent writer, and "A Perfect Spy" can be compared to works by Dickens). You usually have no clue what is going on, and only learn about it later.
I think these movies are attempting to put you in the position of a spy, where you need to pay attention and infer motives from actions, and actions from motives.
The IPCRESS File is probably my favorite in the genre of cold war spy thrillers. It's slightly more on the fantastical side of the spectrum, but still so good it makes grocery shopping interesting.
The camera work is just brilliant, with many shots taken from angles that emulate covert surveillance, yet still managing to beautifully frame the scenes. Since this is implied, but never spoken, some reviewers seem to have missed this aspect, and just though they were shooting scenes through building windows for the sake of it.
Second this. IMHO Richard Burton and Alec Guinness give stellar performances in these shows/movies. I would also recommend the Len Deighton series Game, Set, Match with Ian Holm. You need to watch to the end to figure out what's going on.
