Mumbai, Feb 1 (IANS): Katrina Kaif is shooting in Havana for Kabir Khan's "Ek Tha Tiger" and Hollywood action director Conrad Palmisano is making the actress do daring stunts like free-falls.

Katrina, under the protective eye of co-star and friend Salman Khan, is doing what one member of Cuban unit describes as "the real thing".

"These are stunts that any macho hero would think twice before daring. Katrina is really pushing the envelope as far as the female machismo is concerned. She is doing free-falls with Salman by her side. We hear Kareena in 'Agent Vinod' and Kangna Ranaut in 'Krrish 2' would also be attempting the hi-jinks...," said the unit member.

When asked about her daredevil act, Katrina said: "Yeah, it's scary but great fun. I've only done very feminine delicate roles so far. This is a new challenge for me. I guess that's what I'm looking for at this stage of my career."

Palmisano, who has supervised the stunts for over 200 topnotch films and television series, oversaw Sheila LeBeouf's stunts in "Transformers: Dark Of The Moon", Nicolas Cage in the forthcoming "Seeking Justice" and Jackie Chan in "Rush Hour", informed the source from on-location.

Apparently Palmisano initially suggested "something softer" for Katrina.

The actress is preparing for them every morning.

"She wakes up at the crack of dawn to get warmed up for Palmisano's stunts. Then she gets down to action. Very risky ones, I might add which many of our Bollywood heroes would insist on being done by doubles. Lekin Katrina mein ek junoon hai. She is out to prove she can do action scenes as well...," said the source.