Top Ranked Film in Each Genre

I recently completed adding 2-3 genres for each film in the Top Ranked list we compiled, so as a prelude to those upcoming posts, here's the top ranked film for each major genre. Many films are hard to categorize, like the Wizard of Oz, which is a children's musical comedy fantasy film, or Star Wars, a science fiction war fantasy with humor, so I had to judge which was most prevalent in the film.