After Rockstar, Imtiaz Ali and Ranbir Kapoor had planned to work together for a film to be produced by Sajid Nadiadwala. Buzz doing the rounds is that the project has been put on the backburner

But a source maintains, `The Ranbir-Imtiaz film is very much on. It will roll in September 2013.`

The source adds, `The trio are keen on working together. Sajid had signed Imtiaz a long time back and Ranbir has worked with Sajid in Anjaana Anjaani. But as Ranbir's dates were an issue, it was decided that the film would roll later. In the meantime, Imtiaz will direct another film for Sajid.`