I used this presentation with my 9th graders before we started The Odyssey. We had already done a little mythology, so they knew of at least the major Greek gods and goddesses.
This gives the basic story of The Iliad and introduces Odysseus. I needed to tell them this story, and I included lots of illustrations, painting, and pictures in the Power Point to keep their interest. The last slide contains a link to a clip of the burning of Troy from the movie of the same name.