Acting as a co-star with superstars is not a new experience to Arjun. He has already done as one of the heroes in Kuruthipunal, the classic action movie with Ulaga Nayagan Kamal Hassan. Not only that, personally Arjun is a great fan of Rajini. He always mentioned the superstar as his mentor and on many occasions praised Rajini's noble heart and brave activities in reel as well as real.
It may be recalled that he is the first actor who daringly supported Rajini at the time his 'one day fast' to urge the centre to implement Cauvery Tribunal's Interim Award at Chennai. Quoting all these facts, the sources firmly say that it might be quit possible for the screen appearance of action king with the box office king for the first time in Robot!!