'Paper Heart' is a fake documentary about Charlyne Yi, a Los Angeles comedian who dates Michael Cera (of 'Arrested Development,' 'Superbad' and 'Juno.'). The movie was made while they were dating, as if they weren't yet dating, and released after they'd broken up. So, I guess you could say it's kind of a true story. Also, an actor plays the real movie's director. With me so far?
Well, the plot is kind of beside the point anyway. The documentary part is about love, and whether or not it exists for Yi. She doesn't think so, and travels middle America hearing from couples young and old (mostly the latter) about their loves, lost and present. Often, these vignettes are wrapped up with a kind of puppet show that insert Yi's quirky sense of art and humor into the mix. Those parts are quite lovely.
In fact, the whole movie is quite lovely, in a somewhat forgettable way. As is, the only thing that really sticks out in the viewer's mind is that looming question about what is real and what is not; if Cera had been anyone even marginally less famous, there would have been little else to latch onto. 7 Twix bars!