Contempt (1963)

A philistine in the art film business, Jeremy Prokosch is a producer unhappy with the work of his director. Prokosch has hired Fritz Lang to direct an adaptation of "The Odyssey," but when it seems that the legendary filmmaker is making a picture destined to bomb at the box office, he brings in a screenwriter to energize the script. The professional intersects with the personal when a rift develops between the writer and his wife.

Source: TMDb