You've likely seen this comparison of Harry Potter and the first Star Wars movie but that comparison has recently been expanded to include not only Potter and Star Wars but also The Matrix and Abrams' Star Trek.
Once upon a time, Luke | Kirk | Neo | Harry was living a miserable life. Feeling disconnected from his friends and family, he dreams about how his life could be different. One day, he is greeted by Obi Wan | Captain Pike | Trinity | Hagrid and told that his life is not what it seems, and that due to some circumstances surrounding his birth | birth | birth | infancy he was meant for something greater.
Update: The connecting theme is the monomyth. (via @adamlgerber)
Update: Or perhaps Potter is really Young Sherlock Holmes? (thx, stephen)
