"B.S. I Love You" (1971), 20th Century Fox.

A young male advertising executive discovers that the
quickest way to the top is with a shortcut through the
bed of his female boss. This comedy was directed by
Steven Hilliard Stern. It stars Peter Kastner, JoAnna Cameron,
Louise Sorel, Gary Burghoff, Joanna Barnes, Richard B. Shull,
Thomas Ruisinger and Frank Orsatti.

This is an original 1971 release one-sheet  (27" x 41".) 
The NSS # is 71 / 90

This  poster is in very fine condition. There are slight separations
at several of the folds. There are no pinholes, tears, soiling or fading.