Jason Segel and Linda Cardellini, who play a couple and using their real names, were a couple at the time of filming before breaking up about a year after the movie was released.
The house that the film version of Jenna and James Gunn live in was their own home.
Fischer and Gunn, who play a married couple in the film, Jenna and James Gunn, were married in real life at the time the movie was filmed. They were divorced 4 years after the film was released.