Torn Curtain
An American scientist publicly defects to East Germany as part of a cloak and dagger mission to find the solution for a formula resin and then figuring out a plan to escape back to the West.
[{"name": "Universal Pictures", "id": 33}]
[{"iso_3166_1": "US", "name": "United States of America"}]
It tears you apart with suspense!
Torn Curtain