By the by, why do we have to have 3? Why isn't 2 or 4 more frequent? LotR was split into 3 books. Oddly we had only 3 movies from the same
. Star Wars (you may have heard of it) was a trilogy, and then the prequels were again the magic 3. Same with the X-Men and Spiderman arcs (not including spin-offs and reboots).