Yash Chopra had signed Sanjay Dutt for John Abraham's role. Due to date complications , Sanjay opted out. Thats when Aditya Chopra decided to cast a younger face in the villain's role.
Originally the movie was supposed to have top-of-the-line sports cars. Then the director, Sanjay Gadhvi wanted to have motorcycles because the actors' faces could be seen clearly. Also, he was also crazy about motorcycles when he was young.
When Rimii saves a pup from an accident, it's a tiny thing. But in the next scene, when she brings Uday Chopra home, the dog has suddenly grown bigger.
In the chase after the bank robbery Abhishek fires a bullet which makes the bag fall off John's shoulder. Immediately in the next frame we can see John escaping the second bullet shot by Abhishek, but in that we can also see John still carrying the backpack.
Kabir: After Kabir crashes Rahul's Car... You are very luck Rahul, you could have been in that car too. We are thieves... We tend to disappear in smoke, the moment police see fire, its all over... Nobody can break my rules... Not even me.