The movie covers some interesting topics. While creating, sharing, and invading dreams doesn't work exactly like that, much of the concepts depicted in the movie "Inception" are true enough. We know that Khalid Sheikh Mohammad, the so-called 911 conspirator who was waterboarded 183 times in one month according to some sources, cracked. But what people don't know is that he didn't crack by waterboarding. What cracked Mr. Mohammad was made to believe that he had a vision of the prophet Mohammad who told him to confess.
Anyways, the idea that got me about inception was the fact that we are living in the dream of other people. Just like the inception team had an architect, the world has architects which determine our outside reality to a certain degree. What I mean is, that when you drive down the street and see all the asphalt, the web of power and telephone lines going everywhere, and all the billboards and signs there are people who decided what towns and streets and even our houses and yards would look like.
This kind of thinking is not to be confused with thinking that life is not real. Life is real. The union of the physical and spiritual body is real. Jesus Christ resurrected, redeemed and ascended to heaven with His glorified body. Satan and his minions are prisoners on Earth without bodies and therefore are always busy trying to possess us while at the same time trying to convince us that this world they have corrupted is not real, that our bodies are just vehicles, and that being a spirit like them is the ultimate. Of course they leave out the part that they are prisoners and covet our bodies.
That said, I think it interesting the depiction in the movie of multiple people meeting daily as a group to share the same dream. While, I don't think this is possible in the same sense as the movie depicts it, when you look at how people plug themselves into virtual worlds like SecondLife, WorldofWarcraft, or some random Bulletin Board or ChatRoom, its easy to see how so many people prefer the virtual world to the real world. Maybe in the real world a young man is single, jobless, and lives with his parents; while in WorldofWarcraft the same person is a powerful level 85 Mage with a circle of friends who share in the same dream/illusion/dillusion. I would find it hard to leave in that same scenario.
In the movie each character had a "totem" or anchor that let them know they were in the real world. A commenter on inception I was listening to had the idea that paying bills on time could be a good totem or anchor for people. When you stop paying bills on time, then it lets you know that you are getting lost in the virtual world and neglecting the real world. Actually, the truth is that the people who created these virtual worlds are the same people who collect the money from your monthly bills, so obviously they don't want people to get too lost in limbo. They just want you diverted and distracted. (Cant slaughter the sheep if you want to continually sheer/fleece them).
While, I do agree that a large component of our existence is the result of the dreams and mind of others, which has been corrupted by Satan, I look forward to the Second Coming of Jesus Christ when the Earth will be burned and the slate whipped clean and man will then live on Earth according to the way Jesus Christ intended that we live upon it. This dream was realized by Enoch whose perfect city and society was named Zion.
1 Chr. 29: 15 For we are strangers before thee, and sojourners, as were all our fathers: our days on the earth are as a shadow,
Heb. 11: 13 These all died in faith, not having received the promises, but having seen them afar off, and were persuaded of them, and embraced them, and confessed that they were strangers and pilgrims on the earth.
Jacob 7: 26 And it came to pass that I, Jacob, began to be old; and the record of this people being kept on the other plates of Nephi, wherefore, I conclude this record, declaring that I have written according to the best of my knowledge, by saying that the time passed away with us, and also our lives passed away like as it were unto us a dream, we being a lonesome and a solemn people, wanderers, cast out from Jerusalem, born in tribulation, in a wilderness, and hated of our brethren, which caused wars and contentions; wherefore, we did mourn out our days.
D&C 45: 11-14 Wherefore, hearken ye together and let me show unto you even my wisdom—the wisdom of him whom ye say is the God of Enoch, and his brethren, Who were separated from the earth, and were received unto myself—a city reserved until a day of righteousness shall come—a day which was sought for by all holy men, and they found it not because of wickedness and abominations;And confessed they were strangers and pilgrims on the earth; But obtained a promise that they should find it and see it in their flesh.