The President's Mistress 1978

Synopsis:

A government courier is caught in a deadly cover-up after discovering that his murdered sister was not only the mistress of a U.S. president, but also a Soviet spy.

Directed by: John Llewellyn Moxey
Release date: 1978-02-10
Runtime: 83 minutes
Tagline: DEATH, DECEIT and SEXUAL SCANDAL in the highest office...
Cast:
Beau Bridges
Beau Bridges
Ben Morton 
Susan Blanchard
Susan Blanchard
Margaret 'Mugsy' Evans 
Joel Fabiani
Joel Fabiani
Jim Gilchrist 
Larry Hagman
Larry Hagman
Ed Murphy 
Don Porter
Don Porter
Craig 
Thalmus Rasulala
Thalmus Rasulala
Lt. Gordon