In 1978 , he appeared in Shoot the Sun Down , a western filmed in 1976 that costarred Margot Kidder .
Also in 1977 , Walken had a minor role as Eli Wallach 's partner in The Sentinel .
In 1978 , Walken appeared in Shoot the Sun Down , a western filmed in 1976 that costarred Margot Kidder .
Also in 1977 , Walken had a minor role as Eli Wallach 's partner in The Sentinel .