In the film, Jacqueline will be seen performing a fencing sequence using swords and knives, with Saif Ali Khan in tow. The film releases Jan 25.
Fencing is a sport of armed combat using three weapons - foil, epee and saber. Jacqueline learned and performed the epee and sabre centred-fencing sequence, which combines the use of swords, knives and cavalry weapons.
"We got two experts from Vietnam to teach her. A sequence like this needs style and grace and you can't hurry it up or it will not be justified. Jacqueline, on her part, worked hard for two months to learn the moves," said Abbas of the director duo Abbas-Mustan.
"She wore a fitted costume showing off her curves, with her hair flowing loose. Head gear is worn during fencing, but if we did that people would have assumed a stunt double was doing the scene. So we took cinematic liberty and left her hair loose which looks good with the moves and proves that she's doing the stunt," he added.
The actress was gung-ho about performing her stunts and refused to use a body double.
"When Jacqueline was briefed about the scene, she was quite excited and decided that she wanted to perform the stunt herself," said an insider.
"On the day of the shoot, Peter Haines (action director) and Abbas-Mustan were amazed with how much she had learned. In addition to the fencing combat, the scene also involved front and back flips which she practiced for extensively and finally gave her take without even any harness," the insider added.