A film, or some other dramatic work, set in, the historic (c. 1850-1910) American West (west of the Mississippi river) focusing on conflict between whites and Indians, lawmen and outlaws, ranchers and farmers, or industry (railroads, mining) and agriculture.
Of, facing, situated in, or related to the west.
the western approaches
(of a wind) Blowing from the west; westerly.
Occidental.