Mumbai, Sep 8 (IANS): Post "Rockstar", rumours have been rife that director Imtiaz Ali and actor Ranbir Kapoor are coming together for a movie again. And the news is now confirmed, according to a source closely associated with the project.

The movie will be produced by Sajid Nadiadwala, and they have even convinced Oscar-winning composer A.R.Rahman to join the team, even though he's hard pressed for time.

"Initially, Nadiadwala roped in Ranbir and Imtiaz for a sequel to 'Rockstar'. However, neither the actor nor the director was enthused by the idea of leaping into angst-laden journey of the traumatised musician again, at least not at the moment. They suggested a completely antithetical film to 'Rockstar'," said the source.

Now, Imtiaz would be directing Ranbir in a comedy rather than the "Rockstar" sequel.

"They needed to get away from the gloom of 'Rockstar'. This time it's an out and out fun film. And Ranbir-Imtiaz have coaxed A.R. Rahman to join the fun," the source added.

The story goes that post his work on Yash Chopra's yet untitled film, Rahman had decided to complete the songs of only one other Hindi project, Aanand Rai's "Raanjhanaa", before heading back to Los Angeles. But Ranbir and Imtiaz convinced Rahman to join them on the new project, which will go on the floors early next year.

"Sajid Nadiadwala will first start the film starring Tiger Shroff in October and then 'Two States' with Arjun Kapoor in December. Leading ladies for both have yet to be found. Then Sajid moves to the Ranbir-Imtiaz-Rahman project," said the source.

Nargis Fakhri, the leading lady of "Rockstar", has been left out of the team for the new film.

"Nargis is not part of the film that Ranbir-Imtiaz-Rahman are doing for Nadiadwala. An established leading lady, probably Katrina Kaif or Anushka Sharma, is likely to be cast in this full-on masti project," the source said.