Lionsgate boss Jon Feltheimer has confirmed “one of the worst kept secrets in Hollywood” – Jennifer Grey is starring in and executive producing a new Dirty Dancing movie.Jonathan Levine has been attached to oversee the film, which Feltheimer tells Deadline will be just like the 1987 original, which raked in almost $220 million at the global box office.“It will be exactly the kind of romantic, nostalgic movie that the franchise’s fans have been waiting for and that have made it the