Veteran Filmmaker Mahesh Bhatt, who has directed many critically acclaimed film like 'Saaransh', 'Naam' and 'Zakham' is now starting his new innings as an actor with 'The Dark Side of Life: Mumbai City'.

Bhatt launched trailer of the flim on Monday with his co-actors Nikhil Ratnaparakhi, Allisha Khan, director Tariq Khan and producer Rajesh Pardasani in Mumbai. Sharing his experience about acting in the film, Bhatt said: "Acting is a difficult task. In acting, you have to remember lines and you have to be on your toes. I think it is easy to tell how to act from behind the camera but it is difficult to smile in front of camera.