The one true thing about The One True Thing is that mummy is misunderstood, abused and maligned saintliness while everyone else has actual flaws and strengths of character.
And that's what I thought before Renee Zellweger decided to alienate every woman over thirty by announcing in the press kit that hers was the first generation of females with positions of responsibility in business.
This film is a sniffle-fest -- mummy (Meryl Streep) is dying in hideous detail from cancer, daddy (William Hurt) is a selfish snot of a professor who demands that his daughter (Zellweger) drop her career to look after her. He is too busy engaged in extracurricular activities with his female students and indulging in maudlin reflections on his writing career.
This poem to motherhood is full of cheap tears, wringing every one out with the great cliches. It tries to tell us that for women the ties of family mean accepting humiliation, faithlessness, acting irresponsibly in business, and being incredibly twee. The result is still dehumanisation -- mother is not a human she's just a disrespected servant, romanticised, but merely a symbol that keeps the background of the family's lives going.