"The Hobbit" is a fantasy epic. Two of Peter Jackson's "Lord of the Rings" films, won this category: "Fellowship of the Ring" and "Return of the King."
"Les Miserables" is a period musical. The last musical nominated in this category was "Moulin Rouge" in 2001.
Hair and makeup are used to transform Anthony Hopkins into Alfred Hitchcock, and to similarly transform the rest of the cast into the famous figures they protray. Biopics have often won this category, including "The Iron Lady," "La Vie en Rose," "Frida," and "Ed Wood."