a film so unique, intoxicating and bizarre that it not only demands another viewing, but is also forgivable as a satirical comedy where the jokes eventually take the back seat.

A film with more than the usual spoiler issues. Talking about it in any detail feels akin to handing you a gift-wrapped present and saying, "I hope you like it -- It's a thriller about a diabolical secret experiment."

The movie's neither hopeful in contrived ways, nor hopeless in different contrived ways. Somehow it manages to be wonderful

Great movie. Not sure what people expected but I found it highly entertaining.

This is one of the funniest movies I have ever watched. I have not seen Tamil version but I have seen Hindi version. I watched first 20 mins of this movie and my jaw is already hurting. This movie has too much fun just like Hera Feri and Anadaz Apana Apana. I totally disagree with other commenters who mentioned that Kamal hasan's acting is not great in this movie. Kamal and other team members did amazing job. Don't expect all movies like Sadma. This is comedy movie and you should not expect some serious acting in it. This is not kamal hasan movie. Just watch it as a funny movie. This movie has all the masti/laughter/enjoyment. I seriouly do not understand problem of other commenters. This is very under-rated movie. Must watch movie. This is one of the funniest movies I have ever watched. I have not seen Tamil version but I have seen Hindi version. I watched first 20 mins of this movie and my jaw is already hurting. This movie has too much fun just like Hera Feri and Anadaz Apana Apana. I totally disagree with other commenters who mentioned that Kamal hasan's acting is not great in this movie. Kamal and other team members did amazing job. Don't expect all movies like Sadma. This is comedy movie and you should not expect some serious acting in it. This is not kamal hasan movie. Just watch it as a funny movie. This movie has all the masti/laughter/enjoyment. I seriouly do not understand problem of other commenters. This is very under-rated movie. Must watch movie.

Thoroughly enjoyable movie. I especially appreciated the acting of Kamal Hassan which reminded me of one of the very old French movie about the kidnapping of a child done by French comic Fernandel. It is especially tough to play a dummy, it takes more intelligence to play a fool. I have been to India on a few occasions, in Tamil Nadu, for work on AIDS with the MGR University, and this movie reminded me of everything I found charming and everything I found exhilarating or unbearable in India, such as the bureaucrats, quite as bad as the French bureaucrats. There is nothing profound in the movie, why should there be? It's just enjoyable all the way through and I am a real fan of funny movies. Seems to me that's often the best way to reflect back on life. Best is that it's a good slice of life in India. Like the international bestseller book "Shantakaram" the Australian (G.D.Roberts) bestseller, in a different register, since it is both adventurous, lively, and a good painting of Indian life.

Masterminded by Digambar (Vijay Raaz) a perfect plan is drawn - kidnap the rich builder Mehta's (Saurabh Shukla) son and make easy money. Owing to turn of events, Avinash aka Mumbai Xpress (Kamal Hassan) becomes a part of the plan. However wrong child is kidnapped instead who happens to be ACP's (Om Puri) son. And that's just the beginning of comedy of errors.Kamal's character was not fleshed out well. He appears to be too good a Samaritan to get involved in the kidnapping project. Inspite of the hurdles, he still takes the initiative to move the project ahead. His voice-over was not too appealing as well (wonder he did it himself!). Plus he needs to trim himself big time. His getup isn't appealing at all.Action sequences are handled well. Background score has a heavy influence of the South hence wouldn't appeal to the rest of the audience of India, otherwise the songs are passable. In Chachi 420, Gulzar was chosen for lyrics, I wonder if he was deliberately skipped this time around.It obvious that Singeetham Srinivas Rao has lost his midas touch and after a point gets lost in narration. The situations does evoke some good laughs. Otherwise the story has a lot of loose ends.The ACP's role by Om Puri could have been astute rather than having a comic touch. Pratima Kazmi is okay. Wonder why ex-bar girl now single-mother Manisha is portrayed as gluttony yet Kamal decides to accept her.I watched this movie for Kamal but it was Vijay Raaz who steals the limelight.

I am sorry. Let me be very frank, if you are looking for Kamal's acting or pasupathy's performance like in Virumandi, then please avoid this movie. But if you want to laugh your heart out and forget the story, logic etc etc then please do go to this movie.Movie as a whole has very weak plot, Kamal looks like was not really sure how he wanted to end the movie and what message he wanted to give. The story goes like this, Chidambaram (Pashupathy) and his two friends - codenamed B and C -make a plan to kidnap the son of a rich builder. They discuss their foolproof plan sitting at their adda in Mumbai's Dharavi. But there comes the first problem in whole problematic kidnapping Episode. - C is rushed for an appendicitis operation. A (Chidhambaram, of course!) and B are stopped by C's wife from abandoning the plan and further recommends her much talented brother Mumbai Xpress in place of her husband.Avinashi (Kamal Haasan), who is deaf, (Mumbai Xpress is only a nickname as , if you're wondering). Xpress jinxes the endeavour and a series of unfortunate events like horse bites, car crashes and accidents ensue. Eventually, Avinash manages to kidnap a boy but he is not the boy. Their starts the whole confusion for us as well as for the director. He was not sure how to take the movie further put everyone including the audiences in a tight spin.I kept wondering, did he wanted to say that father(or parental patronage) is very important to a boy/child, or did he wanted to stress all the women like is bundles and bundles of money or did he wanted to say following the 'straight path' is good in life. Keep guessing it. Some of the picturisation especially at the Slum shots with over head aircrafts flying was damn good.My best scene is the School prayer scene where the children who watches Kamal and play the song with expression of emotions while he tries to climb the rope, it was a real good idea. I think Kamal is one of those few good directors who can think of such peculiar but reality situations.But still my sincere suggestion to Kamal would be to go back to Western movies and adopt some stories like he did earlier and give us a new tamil Movie.