I loved this movie but before you go, you need to know a little bit. It is "post-apocalyptic" so is a very grim movie. It is also quite violent. Keeping with the violence is language that you may find offensive.
That said, let me outline the movie. The world as you and I know it was destroyed 30 years ago. Resources are scarce, especially water. Most people in this world can not read as it has been too many years. The main character Eli is on his way "west".
The movie has a message that many of us should hear. Religion is power over people. As you and I both know, however, God does not like religion and the movie has a spiritual twist in it that supports this.