The 32-year-old actress is starring opposite Saif Ali Khan in 'Phantom', an espionage drama, which is slated to hit the screens on August 28 this year.
"Action in this film is different from what I did in 'Dhoom 3' and 'Ek Tha Tiger'. It is not that kind of action that shows larger than life things. It (action) is integral part of the film, it comes in real situation," Katrina told reporters here at the trailer launch of 'Phantom'.
The film, jointly produced by Sajid Nadiadwala and Siddharth Roy Kapur, is an adaptation of S Hussain Zaidi's novel 'Mumbai Avengers' and is set in the aftermath of the 26/11 Mumbai attacks and deals with global terrorism.
Interestingly Katrina was keen on doing more action scenes.
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"I insisted to do a scene with a big gun. I don't think I said I won't do certain things in action. I would rather say I would do everything what Saif (Ali Khan) is doing," she added.
"He (Saif) is a perfect gentleman, he is very smart. He is a good listener so we got along well. He has interesting info about things beyond films, so we discussed lot of things. He is great when it comes to doing work," she added.