Man In The Middle 1964-- Robert Mitchum, France Nuyen

Lt. Col. Barney Adams (Robert Mitchum) is assigned to defend Lt. Winston (Keenan Wynn), a fellow American officer who murdered a British sergeant while stationed in India during World War II. Though a psychiatrist suggests hospitalization for the psychopathic Winston, Gen. Kempton (Barry Sullivan) pressures Adams to throw the trial as a means of smoothing over strained relations between American and British forces. Conflicted, Adams must disobey orders if he wants to see justice served.