"The Rocky Horror Picture Show" helped shape conditions of cult film's transition from art-house to grind-house style. The film developed a cult following in 1976 at the Waverly Theatre in New York, which developed into a standardised ritual. According to J. Hoberman, author of "Midnight Movies", it was after five months into the film's midnight run when lines began to be shouted by the audience. Louis Farese Jr., a normally quiet teacher, upon seeing the character Janet place a newspaper over her head to protect herself from rain, yelled, "Buy an umbrella, you cheap bitch." Originally, Louis and other "Rocky Horror" pioneers, including Amy Lazarus, Theresa Krakauskas, and Bill O'Brian, did this to entertain each other, each week trying to come up with something new to make each other laugh. This quickly caught on with other theatre-goers and thus began this self-proclaimed "counter point dialogue", which became standard practice and was repeated nearly verbatim at each screening. Performance groups became a staple at "Rocky Horror" screenings due in part to the prominent New York City fan cast. The New York City cast was originally run by former schoolteacher and stand-up comic Sal Piro and his friend Dori Hartley, the latter of whom portrayed Dr. Frank N. Furter and was one of several performers, including Will Kohler as Brad Majors, Nora Poses as Janet, and Lilias Piro as Magenta, in a flexible rotating cast. The performances of the audience were scripted and actively discouraged improvising, being conformist in a similar way to the repressed characters.