 You're listening to The Arts Air on the BBC World Service. The film Janet Planet tells the story of the relationship between Janet, played by the always excellent American actor Julianne Nicholson, a single mother and acupuncturist, and Lacey, played by newcomer Zoe Ziegler, her 11-year-old daughter. Lacey's beginning to realise that her mother, once the radiant centre of her life, may be human after all.