The "Kai Po Che" actor plays a pivotal role and says Salman is "phenomenal" who will emerge in a new way in the Ali Abbas Zafar-directed action drama.
"Meeting him was life changing, working with him was life changing. He is phenomenal. With 'Sultan', a new Salman will emerge," Amit told PTI in an interview.
Produced by Yash Raj Films, "Sultan", which also stars Anushka Sharma, centers around a wrestler who has problems in his professional and personal life.
There were reports that Amit will be seen playing the role of young Sultan in the film. The actor, however, did not divulge any details about his character.
Amit will be next seen in the fictional sports-drama "Saat Kadam". Directed by Mohit Kumar Jha, the film also stars Ronit Roy and Deeksha Seth. It is scheduled to release mid-year.