This is some footage I shot in Hong Kong using a production PMW-200. The pictures are not graded but I did use a picture profile to get the vivid colours and deep blacks. The night shots were done with between +6 and +9db gain
http://www.youtube.com/watch?v=Z04Mc_UjOuQ&feature=share&list=ULZ04Mc_UjOuQ
Did you use the cine gamma,s ?