I watched this last night on my (free) PBS app on my iPad, but it's also available to watch online at: http://www.pbs.org/wgbh/masterpiece/watch/pageeight.html
I've read and watched a lot of espionage (non-fiction as well as fiction). This was excellent with some top-flight actors. No chase scenes, gun battles, or explosions, but very well-plotted and..cerebral.
itThis is an excellent film I watched last night on DVD from Netflix.
http://www.imdb.com/title/tt0280653/ I'd highly recommend it. A hat tip to Claudia Chaigne from France who told me about it. http://www.imdb.com/title/tt0280653/triviaI’d seen this photo from the movie before. What I didn’t know until I read about the film on IMDB last night is that it’s very unnatural for a horse to cross its legs. The director pressured the horse trainer to make the horse do this, which he did after 1 hour with sugar cubes(!)