>>There was a 70s movie...
Are you talking about the Bourne Identity TV movie from the 80s? He washed up on shore and there was microfilm with the swiss account number in his leg or something
Bourne takes from so many spy stories that i doubt it possible to mention one without seeing it somehow mirrored in Bourne.
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For below (as I've hit the 3posts/hour limit) maybe I was thinking of bourne, but only if he had a plate with the number on a bone. The thing I remember was that the number only became apparent at the hospital during an x-ray, after the accident that caused the amnesia.
Are you sure it wasn't that one?