Ajay Devgn was first offered the role of Robert D'costa, and loved the script, but turned down the movie because he wasn't keen on doing an intense action film.
Just before Saif and Bipasha's love scene, when Akshaye is seeing them on a plasma TV, it has speakers on its sides before Akshaye is shown, but they are missing the next moment.
In the last scene of the movie when Bipasha Basu and Saif Ali Khan take the money and sit in the car is a Mercedes e320 and in the next scene it becomes a Mercedes e350.