I find it thrilling to see several parts of a film production working together, seamlessly, to produce a single, long, uninterrupted piece of film. Not only to the actors have to be on their game (and not rely on cuts to 'cover' their performance), but every single other discipline on set has to be carefully choreographed and synchronized to make the shot work. These long takes are extremely time consuming to prep, and subsequent resets also eat up a lot of production time, so all departments really have to be on their game when shooting these uninterrupted cuts.
This long take from "The Office" (episode 'Dunder-Mifflin Infinity, Part Two') illustrates some amazing choreography between actors, special effects, cinematography and camera work. Not only is the clip funny, but it's actually suspenseful and exciting, too, especially because of the faux-documentary style of the show.
We'll have more coverage of long takes in film and television in the future. Hopefully.
As a side note: as much as I despise NBC Universal's business practices recently, I must admit that Hulu is pretty darn sweet.