Here you go mate -
The movie starts with an idiot running down a wall who didn't realize he would have descended anyway and he is supposed to be a masterthief. An early warning to the audience that they should ask for refund NOW.
There was little to no plot. Banks were being robbed for revenge but what did the bank do? Didn't give a loan, bounced a cheque....
Acting was bad I mean really bad. Throughout the movie (mostly) Aamir had this angry expression on his face which looked more like he was constipated but suffered from Piles. Confused didn't know what to do so look angry. May be it was not constipation combined with piles but the realization of what he had done by signing for this movie.
The rest of the guys barely had a dialogue or two. The screentime too was limited for the others.
Ahhh... what is a thief without his gadgets? The thief has a bike that transforms into a Jet Skii, can scale a slope that is over 80 degrees, can jump without a ramp, handle bars that retract, can be used on a tight rope., There is one more trick but you will have to see it yourself. The Thief himself is Tony Stark.
Action - The reason people go for such movies
The movie is a mix of action sequences taken from a number of movies Western and Eastern but done South Indian Style. Most of them were hilarious. I am not sure if it was intentional or not but it seemed like a parody of other movies.
This is the first and only Dhoom movie I have seen so I don't if all of them are like this movie but I am sure they can't be worse than this but I have been wrong before.
Conclusion - Watch at your own sanity's risk.
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scottwilly - Congrats my friend you are a survivor. Now that you have gone through hell (watched Dhoom 3) you can bear anything. May I recommend - John Carter or Battleship?