This film is on an extended run at the BFI. Full details here.
Also known as The Lonely Wife, this relatively early (1965) film by Satyajit Ray (The World of Apu), based on a Tagore novel of Victorian India, may be the first of his features in which he really discovers mise-en-scene, and it's an exhilarating encounter. It's typically rich in the nuances of grief and in extraordinarily allusive dialogue, though not very much happens in terms of plot (a sensitive woman is neglected by her newspaper-publisher husband and drawn to his younger cousin). But at every moment, the gorgeous cinematography and expressive camera movements and dissolves have plenty of stories of their own to tell. You shouldn't miss this. In Bengali with subtitles.
Here (and above) is an extract.