Bang Bang poster
Bang Bang posterBang Bang/Facebook

While Hrithik Roshan recently claimed that he "Pushed himself to the extreme" for "Bang Bang", lead actress Katrina Kaif wasn't far behind either as she pulled off a dangerous water stunt all by herself.

Peppered with stylishly choreographed action sequences, the Siddharth Anand directorial required Kaif to hold on to a sea bob (essentially an aqua scooter) while wading through wavey waters. According to reports, the actress underwent a 2-day training in order to operate it efficiently.

Calling it "Different", the leggy lass revealed at the "Bang Bang" title track launch that most of the stunts were done by them. Meanwhile, Anand reportedly joked that they wasted money on stunt doubles.

Interestingly, the actress' last two movies – "Ek Tha Tiger" and "Dhoom 3" – needed her to jump roof tops and hold on to suspension ropes (for a dance number) and there have been reports that the hard-working diva had done it all by herself.

Talking about her experience of working with the "Krrish 3" actor, she told Hindustan Times that her dishy co-actor has "immense focus" and has shot every scene to perfection. "While Zindagi (Zindagi Na Milegi Dobara; 2012) was more of a fun film, this is a fast-paced and intense action movie."

Tagged as the official remake of Tom Cruise-Cameron Diaz starrer Hollywood blockbuster "Knight and Day", the gorgeous actress revealed that it is a mere "adaptation" and not a rip-off. "Since Sid had to adapt it for Indian audiences, the character changed a lot, and there wasn't a huge scope to do that. He was quite clear about what he wanted," she told about reprising Diaz's role in the film.

Slated for a 2 October release, the film features Jaaved Jaffrey and Danny Denzongpa in key roles. With death-defying stunts, exotic locales and foot-tapping numbers, the film will for sure set the cash registers ringing.