The face mapping technique became a popular phenomenon with actors like Aamir Khan and Shah Rukh Khan having used it. Aamir made use of this technique in Dhoom 3 for his double role whereas SRK used this technique in Fan as Gaurav. Now we hear that Akshay Kumar and Salman Khan too are investing in this technique so that they can use it in their future films. It is an expensive procedure but can prove to be useful when doing double roles or roles covering different age groups.

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