Query: 1960s spy drama films
Relevant documents:
The Defector (film)
The Dirty Game
To Skin a Spy
The Poppy Is Also a Flower
The Quiller Memorandum
The Spy Who Came In from the Cold (film)
The Man Outside (1967 film)
The Devil's Agent
Fräulein Doktor (film)
Dead Season
The Red Hand