Long time friends, Mel Gibson and Robert Downey Jr. shares each other's support for the upcoming movie Iron Man 4. Robert Downey Jr. as Tony Stark plays the leading role of all the Iron Man franchise and Marvel Cinematic Universe, but this time favors to do his last Tony Stark role with director Mel Gibson.

As there is a whole lot of speculation surrounding the pre-production of 'Iron Man 4,' Enstars rounds up all that is known about the movie so far.

A new report speculated the return of Robert Downey Jr. as Tony Stark in the fifth instalment of 'Iron Man,' even though he will not be working on the fourth film in the series.

As a lot of speculation surrounds the development of 'Iron Man 4,' Enstars rounds up the latest updates about the film known to us.