"Amour" won the Palme d'Or at Cannes this year, and having seen it this week, I can now testify as to why. But following it up back-to-back with fellow Cannes competitor "Rust and Bone" during a screening doubleheader Wednesday at Sony, I'll confess I found the latter in some ways surpassed it. 

A small degree of conceptual spoilers follow …

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