• The 23-year-old member of Judd Apatow's crew wrote and stars in the film investigating love.
SHE MADE HER FILM DEBUT IN KNOCKED UP The L.A.-born stand-up comic almost blew her audition to play a lovable stoner: "I was terrified!"
SHE'S NOT MICHAEL CERA'S GIRLFRIEND Yi insists she's just friends with the Superbad star, but his female fans still send her hate mail. "I wrote [back] once," she says. "I'm like, 'We're not even together. So now do you like me?' She said, 'No!'"
ELIMIDATE INSPIRED PAPER HEART Yi got the idea for the film after seeing "people making out in the Jacuzzi" on the reality dating show. "I thought, 'Is this how you date?'"