Factual error: Sarah Polley is dying of cancer. She's not told anyone, and the film is about completing her list of things to do before she dies. There's a scene where she's talking about children with her neighbour, a nurse, the woman who she eventually 'sets up' to replace her, to look after her husband and children, when she's died. The nurse refers to a truamatic incident having nursed Siamese twins in hospital, who both die. She describes how one died before the other -the boy, then the girl. This is medically impossible, as Siamese twins are always the same gender.
Factual error: There's is a scene (I believe it's right after she's told she has cancer) in which Sarah Polley says or thinks she is born in December and is an Aquarius, however born in December she'd be either a Sagittarius or a Capricorn. Aquariuses are born from January 20th to February 17th (both +/- 1 day)