It was a bit far fetched, but I understood that the movie was about corporate espionage. Cobb had the power to invade people's dreams, so corporations hired him to steal business secrets from their rivals' minds. Saito, an energy magnate, wanted Cobb to do the reverse: not to take information, but to plant an idea in a rival's mind. In return, he said that he would fix the problems with the US government, so that Cobb could return to his children.

**Did you understand the movie Inception the first time you saw it?** Well, yes, sort of. It was a bit of a struggle though. I wouldn't mind watching it again though.

Yes. And impressed. This is the best review (for the ending) I've ever found so far, unlike those endless and proofless and pointless online, assumptional arguments: http://screenrant.com/inception-spoilers-discussion-kofi-68330/3/