Inception, This is a con artist movie, except con artists of a different nature. These con artists steals ideas and information via dreams. However, in this case, the con is of a different nature. The con is to place an idea in another person’s brain, but to have the idea be the other person’s.
Sounds complicated, and to be honest this movie is very confusing. You have two dreamers, one creating the world, and the other doing the con inside that environment. The con is Cobb (Leonardo DiCaprio) and the one who creates the worlds is Ariadne (Ellen Page). The con is made more difficult because of history, Cobb lost his wife (Marion Cotillard) deep inside a dream, and she still haunts his dreams. Other members of the con team are Arthur (Joseph Gordon-Levitt), Eames (Tom Hardy), Saito (Ken Watanabe) who has hired Cobb to pull off the con, Yusuf (Dileep Rao) and Browning (Tom Berenger). The mark is Robert Fischer (Cillian Murphy).
Talking about dreams can leave anyone confused, and in this case you are talking about dreams inside of dreams, inside of dreams and so on. It can be come confusing. In each level, things go faster. As a result, in each deeper level there is more time to react to what is happening in the lower levels. This is important, because “kicks” need to be timed to take place in all the worlds at the same time so you can wake up.
This work is harder, because people programs defenses into their subconscious—which come out in the form of people defending and shooting. Of course if you kill them, they don’t really die, but it is all confusing in the end with lots of action.