| Director | Nicholas Jasenovec |
|---|---|
| Budget | $1 million |
| Box office | $1.2 million |
Charlyne Yi embarks on a quest across America to answer, "What is love?". She and director Nick search for answers and advice about love.
Yi asks people on the street as well as celebrities like Seth Rogen, Demetri Martin, bikers, romance novelists, children, and scientists to share their opinions and understanding of love. Each interviewee answers, with diverse ideas as to what modern romance is, as well as various answers to the question of whether true love really exists.
Shortly after filming begins, Yi has a "chance meeting" with Michael Cera (playing a fictionalised version of himself) at a party. He begins to take an interest in her, and they get more comfortable with each other as the camera crew and director follow them around. As they go across the country, Yi and Cera begin dating.
Paper Heart is a docufiction; as such, there are only three actors in this film. Jake M. Johnson is the only one who plays a role in the film, a fictionalized version of Nicholas Jasenovec, the director of this film (the real Jasenovec does not appear on camera). Yi and Cera play fictionalized versions of themselves, while the remaining interview subjects and characters play themselves. Real couples talk about their own definitions of love. Stop-motion animation segments accompany some interview subjects' anecdotes about love.
The end credits feature a song performed by Charlyne Yi.