Metacritic recently figured out what the highest rated film franchises are on the media rating aggregate site, and the top spot will definitely surprise you.
While nobody could've played Barney as well as Neil Patrick Harris did on How I Met Your Mother, a Big Bang Theory actor was nearly cast in the role instead.
Marvel Studios has made a habit of ending movies and TV shows by setting up plot threads and characters for the future, but these haven't paid off yet.