The Sleepy Time Gal (2001)

Frances had been a radio DJ in Florida; she's now living in San Francisco and dying of cancer, with one son living nearby whose work as a photographer is beginning to take off and another, mostly estranged, living in London. She makes a trip to rural Pennsylvania to visit an old lover (and his wife). Meanwhile, Rebecca is searching for her birth mother, who is, of course, Frances. Their lives intersect in other unexpected ways as her search and her work, inspecting the books of radio stations being acquired, progress.