Contrary to what most people think, it's actually Arjul Rampal who is Ra.One, while SRK is G.One in the movie. Here's a dekko at the villain Arjun's evil look.
SRK has certainly popularized his super-hero avatar, but here comes the super-villain, and hold your breath.... he does give you the chills.
Just like G.One where SRK sports two different looks - as a regular nerdy looking fellow and the other is an iron-man inspired blue & black super hero look.
The villain Ra.One will have Arjun in two different looks as well. One will be a normal bald guy covering his head with a hood and the other will be a red and black costume, a cross between Spidey and Batman's ensemble.
Looks like tattooes are now being associated with villains, after Sanjay Dutt's tattoed avatar in 'Agneepath', Arjun will sport a few tattoos as well, in Ra.One to add to the evil quotient.
SRK does claim that Ra.One is a tribute to Rajini sir's super hit 'Robot'. So much so, that he managed to get the man himself, to shoot for a small sequence in the movie as 'Chitti' the Robot.
From the trailers one can gather that it's a story of regular guy (Shahrukh) who has a beautiful wife (Kareena) and a young son for whom he creates a game where the villain is more powerful that the hero. Somehow the gaming characters come to life, and then begins the challenge of G.One to Ra.One.
Now how to story actually unfolds, we'll get to see on October 26, 2011.