Passage: Gardner realized his story had Hollywood potential after an overwhelming national response to an interview he did with 20/20 in January 2002. He published his autobiography on May 23, 2006, before becoming an associate producer of the major motion picture The Pursuit of Happyness, directed by Gabriele Muccino and released by Columbia Pictures on December 15, 2006. The unusual spelling of the film's title comes from a sign Gardner saw when he was homeless. In the film, "happiness" is misspelled (as "happyness") outside the daycare facility Gardner's son attends.

Question: What did Gardner see when he didn't have a place to live?
The unusual spelling of the film's title