The Chairman (1969)

An American scientist is sent to Red China to steal the formula for a newly developed agricultural enzyme. What he is not told by his bosses is that a micro-sized bomb has been planted in his brain so that should the mission ever look likely to fail, he can be eliminated at the push of a button!
J. Lee Thompson, Ferdinand Fairfax
Gregory Peck, Anne Heywood, Arthur Hill, Alan Dobie, Keye Luke, Zienia Merton, Conrad Yama, Ori Levy, Burt Kwouk, Ric Young, Alan White, Anthony Chinn, Laurence Herder, Helen Horton, Robert Lee, Francesca Tu
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