My Thoughts !

Every good movie will have a "what if" one liner knot in the story.

Consider the following "What if"s:
What if one day, an alien spacecraft covers the sky of every human city? - Independence day
What if one day you wake up and find all your life is just a dream and reality is something different - The Matrix
What if a freedom fighter starts killing people who demand bribe? - Indian
What if a adopted kid wants to meet her real parents? - Kannathil Mutthamittaal

Then the knot would be developed into a nice screenplay. Here is where the characters will be defined and the whole flow of the movie would be decided. If the knot is the skeleton, this is the flesh of the movie

The final thing is the picturization. Here the length of the scenes, dialogs, camera angle, stunning stunts, technologies, etc will come into picture. This is the dress on the flesh. For a given screenplay, this gives a good out fit and its mainly determined by the budget. More the budget, richer the dress is.

Coming back Gajini, it had a wonderful knot like that - What if a person with short memory loss wants to take revenge on people who killed his wife? But looking at the screenplay, a lot of loopholes. What is the necessity of the Police Inspector's role? Nayandhara's character is not properly defined. How come the hero collects the phone number and other details of the villain? And more importantly, why is he tattooing it when he can simply write it down on a paper? Things like these make the screenplay very weak.

Picturization. Should say in many places it was really good. Esp the climax fight where hero fights with the twins. The technology is perfectly utilized(The worst thing is the twin is introduced in the movie only to use the technology! He has no other role than that) Whats not good about picturization is violence. It is too much. From the starting scenes, were blood dripping from the water tap, to the climax, where the villain kills a gal and removes her dresses. Esp the place where Asin gets killed.

The only thing I liked in the movie is Asin and Surya. The scenes where she comes are really entertaining. In fact I thought if the one liner of this movie had been: "What if a middle class gal claims to love a millionaire, and he really falls in love with her", the movie will be real entertainer.

Final thought is that if Murugadass booked Vijay Gandh for this movie, it would have been a block buster as their previous combination - 'Ramana'

To give a one liner about a movie, I can say that: An ugly shaped body on a strong skeleton wearing a good looking dress, which is torn in few places!