Which film is a Cold War tale about an upset Pentagon General seeking a military takeover of the US?

In the 1964 film "Seven Days in May", U.S. President Jordan Lyman (Fredric March) hopes to bring an end to the Cold War by signing a nuclear disarmament treaty with the Soviets. However, much to the displeasure of the hawkish General James Scott (Burt Lancaster), Chairman of the Joint Chiefs of Staff, he doesn't want President Lyman to be successful. When Scott's aide, Martin "Jiggs" Casey (Kirk Douglas) stumbles on shattering evidence that the General is plotting a coup to overthrow Lyman in seven days, "Jiggs" alerts the President. This will set off a dangerous race to thwart the takeover which has been planned for the United States of America.

"Seven Days in May" is an American political thriller film that was directed by John Frankenheimer and produced by Edward Lewis. Its stars are Lancaster, Douglas, March, and Ava Gardner. They worked from a screenplay which was written by Rod Serling based on the novel 'Seven Days in May' by Fletcher Knebel and Charles W. Bailey II, published in September 1962. There was a very positive audience response when the movie opened to some very good critical notices.

This is a film that was nominated for two 1965 Academy Awards, for Edmond O'Brien for Best Supporting Actor, and for Best Art Direction-Set Decoration/Black-and-White for Cary Odell and Edward G. Boyle. In that year's Golden Globe Awards, O'Brien won for "Best Supporting Actor". Fredric March, John Frankenheimer, and composer Jerry Goldsmith got Golden Globe nominations.