how'd they merge them? It was pretty seamless. There were no noticeable edits.
One more note on Idiocracy. The movie caters to the audience it mocks; not exactly a recipe for success. If it were a smart comedy about how stupid people are becoming, that'd be great. However, it relies almost completely on jokes that would appeal only to the idiotic society it is bashing. Dunno what Judge was thinking. It's like he's making a movie saying "Look, everyone's becoming dumber, and to prove that point, I'm making a dumb movie that will help you along the way". They even had this annoying voice-over explaining the most obvious, mundane details of the plot constantly. While that may have been meant to be ironic, it was just condescending and annoying for the most part.