Still Alice is
the exact type of film that gets actors nominated; it's honest, focused on a medical issue, and requires it's lead actor to not only study, in this case Alzheimer's, but deliver a progressive performance throughout the film.
The same
exact comments, more or less, are stated again in the featurette — the fact that making a
film out
of different
types of footage is a challenge, etc, etc — more or less facts that one could gather on their own watching the movie.