Actress Rhoda Jordan is a vegan. Writer-director Eric Shapiro is a vegetarian. The pair has been married since 2004.
Writer-director Eric Shapiro said he thought shooting the film would be easy, since it consists of two characters talking, but that the demands of telling a story in real time, maintaining smooth continuity, and keeping the story compelling made directing the film the hardest job he's ever had.
Writer-director Eric Shapiro told editor Roger A. Scheck during post-production that the film was his version of "2001: A Space Odyssey", only instead of exploring outer space they were exploring inner space.