Prabhu Deva has become the most successful filmmaker that Bollywood producers ennoble him as the ‘Money-Minting Factory’. The director has churned out back-to-back hat trick (Wanted, Rowdy Rathore and Ramaiya Vastavaiya). The director is busy now shooting for his next film ‘Rambo Rajkumar’ that stars Shahid Kapoor in lead role. Soon after completing this film, he will be joining hands with Ajay Devgn for a film. The latest news is that Reliance Entertainment has now signed Prabhu Deva to helm untitled project that will star Saif Ali Khan in lead role. The film is scheduled for release on January 23, 2015.