I need help choosing 2 movies for my evaluation essay.?

I have to "Develop a three or four-page essay that evaluates and compares two television shows, documentaries, films or websites that are related to a similar theme or issue. Examples might include Tombstone and Wyatt Earp, two movies which explore the life of the legendary gunfighter and his relationship with Doc Holiday. Comparing two television reality shows or news programs would be yet another example. Or, you might compare two websites that focus on the environment." However, I cant seem to figure out what movies to use. I love the Wyatt Earp and Tombstone idea because I practically know those by heart; well at least Tombstone. Any way do you have any suggestions on movies to compare????