Patricia Rosema's Mouthpiece (2018)

Mouthpiece illustrates grief in a very novel way. Elaine (Maev Beaty) was the daughter of Cassandra (Amy Nostbakken and Norah Sadava), and she has just died. Although there are various flashbacks, the two women playing Cassandra do not represent different states of Cassandra's life: they are in fact the two writers of the play on which the story is based, and they are presented as conflicts within Cassandra's psyche, within her grieving personality, also appearing simultaneously. For some time I was trying to figure out exactly what the two 'stood for' – mental versus physical, id versus superego? – but no, this is just a general personality conflict, I believe. And this is a very powerful film.