The motion poster was launched through social networking site Facebook and the actor had a live video chat with his fans, said a statement.
The poster shows a moving close up of a light with debris lying around. As the background score gains momentum, the side pose of two faces - one of them being Hrithik's character - emerges.
During the live chat, Hrithik spoke about various things ranging from his hobbies, likes and his hero.
Actress Priyanka Chopra, who plays female lead in the movie also joined the actor.
Directed by Rakesh Roshan, "Krrish 3" also stars Vivek Oberoi. It is slated to release Nov 4.