Director Rajkumar Hirani and producer Vidhu Vinod Chopra are responsible for some huge hits like 'Munnabhai MBBS', 'Lage Raho Munnabhai' and '3 Idiots' and the upcoming film, 'P. K.' Going a step ahead, Chopra will be floating another production house, helmed by Hirani, to promote new directors, actors and writers