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."