Thanks guys, I'm super happy with this pick up. I agree with the praise for M, it's among my favorite films of all time. I first saw it on French TV as a kid in the 1980s, and over the years I've been periodically rewatching it, each time amazed by how powerful and ahead of its time it was. Peter Lorre's performance is truly unforgettable.
As a proto Film Noir, it fits nicely within the scope of my collection. I actually own very few German posters, as I rarely see any that I like, but this one is obviously in a league of its own. As I said, I've been looking for a copy for a while, and I still can't believe I got it at that price.
Thierry, out of curiosity, why do you say that your wife would kill you should you buy this poster? Is it because of the dark subject matter, or the ominous image? I like the Italian poster for Breathless that you got by the way.