Farah Khan admits that the basic idea of Om Shanti Om originated from her show "Bombay Dreams" and she also wanted to pay homage to Bollywood in the Seventies."While I was watching the show, I realized that for the NRI audiences, black-and-white films have been frozen in their hearts forever, especially because of the kind of costumes that the actors used to wear," Farah said when I met her for this interview at Hotel Land's End in Bandra.She continued: "I...