First I would like recommend you recommend you to go and watch movie in theatre in 3D. Its vfx effects are awesome and looks realistic.
While talking about plot of the movie this movie is full of action and comedy. Shankar's story and direction take this movie to a another level. Story is very intersting only the thing is you cannot understand few theories and can't relate with plot. Not a single plot you will this movie is boring.
While talking about performance of cast superb work done by everyone. Specially rajnikant once again we can see his swag with his legendary style.
There are very few songs on this movie but looking at the script its ok. The background music was thrilling and credit goes to AR Rahman. Nice work done.
The special thing with this movie is its cinematography its vfx are realistic.
One star less only because of the soul of pakshiraj which is controlling mobile phone. Only this is inapropriate and objectinable but looking at remaining movie you dont bother about this, So thats ok. Its looks like that director was in hurry to end the movie this left us unsatisfied