do u guys notice something . that saito and mal use this words : Take a Leap of Faith .. i wonder why . anybody wanna elaborate

I hope so. Would be a nice ending for Fischer. 
Ah, karma. Here's another perspective on the film that I just heard from a friend:

Cobb is not a good person. Neither is Saito. Both of them are trying to victimize Fischer, an innocent man. From a karma point of view, if Cobb is still trapped in a dream world at the end, it's because he deserves it.

Also, I mentioned this before - I got the impression that Cobb incepted an idea into Saito, the same idea he incepted into Mal. Which means that Saito would eventually believe that reality is not real, and that he will end up killing himself. Which, again, is what he deserves.

1. Wrong. If you die in dreamland, you go into limbo until your sedation wears off. Then you wake up. The question is, are you still sane after that?

I already answered this. Padding! Time slows down even more in level 3, and to juxtapose this with the relatively faster time in level 2, they have to have the characters do something busy, like taking on entire teams of generic henchman, sniping, making their way through snow. The same can be said about the zero-gravity scenes in which we are shown nothing but Arthur moving the bodies from one location to the another. It's the only reason for all this bullshit action. Why couldn't they have just placed their point of entry right in the fortress? This is one (and maybe only) area of the script that's not only not up to Nolan's high standards, but also shockingly bad.

I got 1 question. During when did Cobb's totem stop spinning?? Coz I dont recall it stop.

Or maybe the totem will just go according to the dreamer's wish, as he said that you can create everything in the dream.

One funny question.
Yusuf caused the 1st lvl dreamscape to rain because he had the urge to pee.

What happens if he had the urge to take a dump?

If Cobbs can't get into States, why didn't he smuggles their children out of states ????

Makes me wonder if it is an inception being carried out.

He didn't know the job would get so dangerous maa. 

It was Arthur's fault for not briefing them about the heightened security.

It is also MAINLY Cobb and Yusuf's fault for not telling them that they will go to "Cuckoo limboland" if they die in the dream with powerful sedative concoctions.

Well honestly, i think Eames is the most reliable team member compared to everyone else.

cos Fischer is about to inherit a corporation that controls 70% of the world's energy production(or something like that), and Saito's company no longer can compete with them, so he want Cobb to put an idea in Fischer's mind so that he will break down his father's company

indeed the best movie i've ever watched this year. perhaps for my entire life so far.
Christopher Nolan never fail to give me a goosebump at the ending of the movie.
First was Memento, then with Dark Knight and this movie is like the-mystery-of-Memento combined with explosion-from-Dark-Knight.

Here's my interpretation of the movie. I could be wrong.

Let's take the picture above as the start. The picture is saying that there's 5 level - as depicted in the picture.
My understanding on this movie is that there's 6 levels.
Level 1 in the picture is actually Level 2.
Level 2 in the picture is actually Level 3 and so on.
The very Level 1 is actually Cobb's dream.
Whether there is a machine called 'Inception', that's really up to us to think as this whole movie is actually Cobb's dream.
In case this is not a strong statement, think of the movie 'Identity' where throughout the whole story, there's just only 1 person, in this movie - it's Cobb.

What i'm going to say onwards is more towards my own imagination and thoughts of this movie.
His wife and kids had been dead for quite a long time. He couldn't accept the death of his family and most importantly, he can't accept the fact that his wife has been dead.
Therefore, it tooks so many layers deep inside his mind to forget about Mal. With him really able to let go Mal, then only he's able to see his kids' faces. Well, the kids might/might not exist. Let's say they exists. He will only be able to 'face' their kids when he fully let go of his wife's death.

As i mentioned earlier, the entire thing was Cobb's dream. What i'm saying next might be insane.
Mr Saito is the projection of his realself in the real reality.
Cobb is an old man that is waiting for his death in a lonely way.
In Real Reality, Cobb is an old man. Back to the previous theory I've mentioned, due to he's unable to accept the fact of his family's death, he choose to dream. Dream to be young again and find those memories back again. In denial, you can say. At last when he's managed to let go, he's able to 'gain happiness' with his kids.
Well, whether Cobb using Inception machine, or merely just sleep with sedative and dream, we'll never know.
And I don't hope for sequel or prequel of this, Masterpiece should be just 1.

I actually find Mal to be very terrifying. Everytime she appears on screen, bad things happen. Her cold eyes and out of control behaviour. Imagine the butcher knife and broken glass, her yelling at Cobb to stay with her and grow old together, really send chill up my spine.