"Paper Heart" *** (out of four): Charlyne Yi's charming pseudo-documentary about the nature of love is a surprising breath of fresh air.

So what is love, anyway? It's a subject that pervades every corner of our culture, from high-brow literature to pop songs and syrupy romantic comedies, but are we any closer to understanding what love is? Part documentary, part fiction, "Paper Heart" is the story of comedian Charlyne Yi's quest to get a handle on love, both from her interview subjects and her own brush with romance with (real-life boyfriend) Michael Cera ("Superbad").

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