'I have a great respect for Imtiaz as a film maker, but I am not a part of his next film. I am tied up with big projects like 'Dhoom - 3' with Amir Khan and 'Bang Bang' with Hritik Roshan in coming months. I cannot devote dates for any other film as of now', said Actress Katrina Kaif denying all the rumors about she working with the film maker in his fourth coming film, the lean Man being Ranbir Kapoor.

But the rumors about this act of Katrina say, the actress opted out of the film because of Ranbir's involvement. But, some sources close to the actress deny this. They say, 'Katrina believes in giving her best for her every film and this makes the actress to not to work in more films at a time. Ranbir has nothing to do with Katrina not being a part of Imtiaz's next. These are purely cooked up stories that have no meaning', said the sources.

Now what is the actual reason, it is known to them only...