"Heroine" is set for a September release, Saturday said she was confident but not over-confident about it.
"I am not over-confident but quite confident and excited about the film," she said at a promotional event, marking the film's tie-up with clothing brand, Jealous 21, here.
Asked about she is jealous of in life, she said: "I am jealous of people who get to go on holidays, even though I go on many on my own. I love travelling. I am also jealous of people who get to eat whatever they want."
Releasing on Sep 21, the film also stars Arjun Rampal and Randeep Hooda and has been directed by Madhur Bhandarakar.
Having done various films like "Ra One", "Bodyguard" and "3 Idiots", the actress said that the one closest to her heart will be her first film, "Refugee".
"The first film is always special. That innocence never comes back. 'Refugee' is my favourite film," she said.
"Heroine" revolves around the ups and downs in a journey of an actress. Kareena said that even though she is playing the role of an actress in the movie as well, she is nothing like that in real life.
"People think there are similarities, but I am not like that in real life. She is bold, manipulative, dark and edgy. I am not at all like that," she said.
Talking about her look in the film, she said: "My favourite looks are in the title song of the film, which is yet to release."

                    कांग्रेस केन्द्रीय सदस्य सुजाता कोइरालाले पार्टीको बहुमत निर्णय सबैले मान्नु पर्ने बताउँदै नमान्नेलाई स्पष्टिकरण सोध्नुपर्ने बताएकी छन् ।नेपाल प्रेस युनियनले आज रुपन्देहीमा आयोजना गरेको पत्रकार भेटघाट कार्यक्रममा उनले सभापति सुशील कोइराला विरुद्ध वरिष्ठ नेता शेरबहादुर देउवाले गालीगलौज गर्न नहुने बताईन् ।
‘सभापतिलाई गाली गर्दै हिँड्नु हुँदैन,’ उनले भनिन्, ‘पटक÷पटक प्रधानमन्त्री भएको व्यक्तिले यस्तो गर्नु पार्टीको लागि राम्रो हुँदैन ।’सभापति कोइरालाका विरुद्ध गतिविधि गरेर एक्लै हिँडेर पार्टीलाई केही असर नपर्ने बताएकी उनले भनिन्, ‘वरिष्ठ नेता शेरबहादुर देउवा जीसँग स्पष्टीकरण सोध्नु पर्छ ।’
उनले कांग्रेस नेतृत्वमा सहमतीय सरकार बन्ने अवस्था आएमा पार्टीले प्रधानमन्त्रीको उम्मेदवार प्रजातान्त्रिक प्रक्रियाबाटै टुङगाउने बताईन् ।