What are some of the most popular themes?

Question:

What are some of the most popular themes?

By theme, I mean the message or central idea a piece of literature or a movie gives off.

Best Answer - Chosen by Asker:

The Great Journey
Loss of Innocence
The Noble Sacrifice
The Great Battle
The Fall From Grace
Love and Friendship
The Capriciousness of Fate
Revenge
The Big Trick
The Big Mystery