Sanjay Dutt needs rehearsals before he hit the dance floor. But in coming film 'Parineeta' he gave an impromptu dance performance in Durga Puja set. One of the unit members tells that, "He hadn't even practiced for it. He just came and aped what the person to his left was doing. If you see it in the movie, it looks so natural that anyone would thing that he's worked."