This year marks the 100th anniversary of the publication of J.M. Barrie’s novel, “Peter Pan.” The characters of the novel appeared, however, several years earlier in Barrie’s stage play, “Peter Pan, or the Boy Who Wouldn’t Grow Up.” The story has been adapted for movies and musical theater, and this weekend the Addison Repertory Theater is reaching back to the original stage play for their production. The show will be performed Thursday, Friday and Saturday nights at the Middlebury Union High School auditorium at 7:30 p.m. with 2 p.m. matinees on Saturday and Sunday.