Given the question: Build a movie plot around this: Do Kym and Rachel agree to stay in touch? NO
The answer is:
Kym Buchman (Anne Hathaway) is released from drug rehab for a few days so she can go home to attend the wedding of her sister Rachel (Rosemarie DeWitt). At home, the atmosphere is strained between Kym and her family members as they struggle to reconcile themselves with her past and present. Kym's father Paul (Bill Irwin) shows intense concern for her well-being and whereabouts, which Kym interprets as mistrust. Kym also resents her sister's choice of her best friend to be her maid of honor instead of her. Rachel, for her part, resents the attention her sister's drug addiction is drawing away from her wedding, a resentment that comes to a head at the rehearsal dinner, where Kym, amid toasts from friends and family, takes the microphone to offer an apology for her past actions, as part of her twelve-step program.Underlying the family's dynamic is a tragedy that occurred years previously, which Kym retells at a Narcotics Anonymous meeting. As a teenager, Kym was responsible for the death of her younger brother Ethan, who was left in her care one day; driving home from a nearby park, an intoxicated Kym had lost control of the car, driving over a bridge and into a lake, where her brother drowned. The day before the wedding, as Rachel, Kym, and the other bridesmaids are getting their hair done, Kym is approached by a man whom she knew from an earlier stint in rehab. He thanks her for the strength she gave him through a story about having been molested by an uncle and having cared for her sister, who was anorexic. Rachel, hearing this, storms out of the hair salon. The story turns out to be a lie, an apparent attempt by Kym to evade responsibility for her addiction.The tension between the sisters comes to a head later that night at their father's house, when Kym comes home. Rachel reveals she has never forgiven Kym for their brother's death, and suggests that Kym's rehab has been a hoax since she has been lying about the cause of her problems. Kym finally admits responsibility for Ethan's death and reveals that...