the grandmother (minor spoilers)
just finished watching the film, i liked it except for one thing. Eve's grandmother did not have Alzheimer's, i work with people with Alzheimer's and she clearly had a memory problem but her answers to the questions were very atypical for someone with Alzheimer's. I watched the question asking scene, told myself 'so she doesn't have Alzheimer's i wonder what she has' and then the doctor said with such certainty that she had Alzheimer's; i was a bit confused.
the writers should have done a bit more research, people with Alzheimer's remember their date of birth, and this stays with them until the disease progresses much more than what was displayed on the screen, same for the start of the first world war, distant memories are the last memories to go they rarely know what the year is and rarely know how old they are but they can quickly and without any difficulty at all recite their date of birth.
apart from that a really good film.