One of the lines in the movie is, "Don't think of an elephant...now what are you thinking of?"
The whole premise of the movie is how to plant an idea so deftly, at a deeper level, that the subject takes ownership of the idea, such that it becomes self-sustaining. That is an "inception."
Could Don't Think of An Elephant by George Lakoff have been on the mind of the writer and director? Could the importance of getting framing right, so that a person has no choice but to come to their own conclusions in your favor, have been a lesson of this movie?