At some point in every relationship there comes a test of sorts that reveals the true crux of its foundations. Like farting in front of your spouse for the first time or running away during an avalanche. In director Ruben Ostlund’s brilliant Force Majeure, it’s the latter event that fractures a seemingly happy marriage. This wickedly sharp-eyed Swedish export explores the trappings of marital complacency and the deceptive appearance of security. While Gone Girl took on similar themes earlier this year in an extreme, tabloid manner, Force Majeure’s sensibilities are more in the line with a slowly burning melodrama (think Michael Haneke, if that helps).