Legend has it that director Derek Cianfrance had the co-stars and co-executive producers Michelle Williams and Ryan Gosling live together in the same house for a month in preparation of their roles. The fictional couple they play in Blue Valentine lived in the same house. True or not, this created the harsh proximity, intensity, and claustrophobia that is a hallmark of this production. Blue Valentine brings us painfully close to the couple's attraction as well as their agony.

In this way, Blue Valentine is a heart-breaking examination of the decaying shell of a once-bright marriage. As sad as it is sexy, it mixes intense flashbacks of past desire with the grim reality of married life's monotony. It boasts an electrifying performance from Michelle Williams and Ryan Gosling, who seamlessly combine tenderness and lust, rage and sadness. This is a guaranteed tear-jerker, so make sure you've brought your Kleenexes!