This is the first Bollywood film that has been released on a Blu Ray disc in HD quality.
First time Srk did a guest appearance in an Akshay Kumar film.
Shah Rukh Khan was offered the lead role but declined due to date problems.
Vidya Balan, who makes an entry almost an hour into the movie dominates the rest of the movie, lending a quiet dignity to her role and showing her mettle as a mature and mobile actress. Her dialogue delivery especially is noteworthy.