The other day Kareena Kapoor got cold feet when she had to jump into a moving train while filming for Imtiaz Ali's yet untitled film. Interestingly, the actress has never boarded a train in life, and so was extremely nervous about getting crushed under the wheels of the train.

According to our source, "Kareena has never travelled by a train and here she had to make her way into a running train. It was obviously tough for her and we had to do a few rehearsals before the shot was taken."

Kareena further panicked as the train picked up speed instead of slowing down, on a few occasions. This is when director Imtiaz Ali asked the actress to ditch the scene if she was uncomfortable.

A unit member says, "Bebo was not very comfortable while filming the scene. She faltered a few times, which was quite scary. Unfortunately, the speed of the train was not under our control. That's when our director Imtiaz said that he didn't want any mishaps on the set. So he suggested that we scrap the scene."

However, Kareena refused to compromise and decided to enact the scene. After a few failed attempts, she managed to swiftly jump into the train. Eventually, she got the scene right. The producers (Shri Ashtavinayak Cinevision Ltd) say, "Kareena was a little nervous initially. But later she gave a perfect shot."