The Ipcress File (1965)

Sly and dry intelligence agent Harry Palmer is tasked with investigating British Intelligence security, and is soon enmeshed in a world of double-dealing, kidnap and murder when he finds a traitor operating at the heart of the secret service.

Director:

Sidney J. Furie

Stars:

Michael Caine (Harry Palmer), Nigel Green (Major Dalby), Guy Doleman (Colonel H.L. Ross), Sue Lloyd (Jean Courtney), Gordon Jackson (Jock Carswell), Aubrey Richards (Dr. Radcliffe)