Perseus and Medusa Resources
Websites
This is a great source for all things ancient Greek. We're linking to the page on Perseus.
Movies
The 1980s take on the myth of Perseus. The old-fashioned animation is kind of awesome.
The most recent Hollywood production loosely based on the story of Perseus. The cast includes Sam Worthington, Liam Neeson, Ralph Fiennes, and Gemma Arterton.
Video Games
Here's the video game version.
Kratos, Mr. God of War, fights and defeats both Perseus and Medusa.
Historical Documents
Compare several ancient tellings of Perseus' myth.
Videos
Perseus vs. Medusa, according to the 2010 and 1981 films. This video compares the showdown scenes, not to mention the graphics, of both movies. (Spoiler: Medusa is not asleep.)
Perseus vs. Medusa, according to Russian animators.
Nope, it's not faithful to the original myth, but it's still fun.
Be sure to watch long enough to see the Kraken.
Books
A graphic novel version of the tale.
A novelization of the Greek myth that fleshes out Perseus' story for young readers.