Can understand the fairly lukewarm reviews for this film about a happily married couple (Keira Knightly and Sam Worthington) who have a night apart and consider having affairs. More a theatre piece perhaps than a film, with no real story, but a lot of honesty about how people work/think in such situations. I enjoyed it. Not most people's cup of tea but am glad there's still room for films like this to get made. Very sudden ending - which seemed perfect given what preceded it.