Twilight's Last Gleaming 1977
Directed by Robert Aldrich | Starring: Burt Lancaster, Roscoe Lee Browne, Charles Durning, Joseph Cotten
A renegade USAF general, Lawrence Dell, escapes from a military prison and takes over an ICBM silo near Montana and threatens to provoke World War 3 unless the President reveals details of a secret meeting held just after the start of the Vietnam War between Dell and the then President's most trusted advisors.