After Dangal, which film will be Aamir Khan's next, everything is finalised about it. After completing the shooting of Dangal, he will start pre production and discussion with the next film team. This is his ex manager's film, which title is 'Secret Superstar'. Before coming on the floor, this film is facing problem. News is, Music director A.R Rahman has taking his hands back from this film, who was working on sound track. ALong with him, Prasoon Joshi has also refused to work in this film and reason is Aamir Khan. Actually, source says that A.R Rahman is angry with the film making process. He was working on sound track with Prasoon Joshi from last 1 year, but Aamir still don't have time to sit and listen the song with them, so no development was seen in the work. So Rahman got angry and decided to leave the film along with Prasoon Joshi because he don't want to waste his time.