Mumbai, Aug 14 - Shahid Kapoor says it a 'challenge' to work with Vishal Bharadwaj but at the same time he admits that the director brings out the best in an actor.

'Vishal is a very dangerous director. Working with him is no less than undertaking dangerous tasks because he brings you out of your comfort zone and asks you to perform stuff that has never been done by an actor in his life or career,' Shahid said.

The two teamed up for the just released dark thriller 'Kaminey'. Shahid plays a double role in the film. The film also stars Priyanka Chopra.

'It's a challenge for an actor to work with him but at the same time it's very fruitful too... he brings out a new talent in you every time he takes a shot. He is multi-talented and very supportive and I'm very thankful to him,' he said.

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How Rajinder became David Dhawan

Bollywood celebrities are mostly known by their nicknames. But not many know that director David Dhawan is one of those whose sobriquet actually became his official name on paper.

'My original name was Rajinder but when I was growing up, my neighbours, who were Christians, used to randomly call me David... and as time passed, I was known by my nickname and even my parents stopped calling me by my real name,' Dhawan told IANS.