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.
A BMW 6 series is shown 3 times in the film and they were all different models each time: M6, 645i, and 650i.
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.
They show an insurance policy status letter of a dead person. The status of policy reads "Active" instead of "Terminated".
When Inspector RD & his Asst. discuss the habit of a person to borrow the other person's pen to sign the same form, the Marriage Certificate shows "Durban" as the city whereas it should actually have been Cape Town because Ranvir and Sophia allegedly got married in Cape Town.
In the final chase scene, none of the actresses's hairs are flying despite the cars being in full speed and their windows are open.
Anil is shown eating things even in morgue which is not allowed.
Saif Ali Khan and Akshaye Khanna are able to perform drifts in their final race; however Saif's car does not even have breaks. Akshay would not want to break because he believes the car has a bomb in it, so for them so be able to perform these drifts is not possible.
When the assassin drives a truck/car to kill Sonia in the rooftop parking lot, Sonia runs towards the edge, where lighting and camera equipment are visible.
In a song, Akhsay Khanna teaches Bipashs Basu how to play Pool. All the balls are still on the table, and they pot the 8 Ball. Logically, the game should be over but they happily continue the game.