This episode was hilarious from beginning to end. The title of this episode Documentary Filmmaking: Redux is a play on the Title Apocalypse Now Redux, Apocalypse Now is referenced a few times during the show saying that Hearts of Darkness (the documentary about the making of the film Apocalypse now) was actually far superior to the film it was documenting.
Dean Pelton is one of the best characters on the show, alongside Senor Chang, and it is nice to see him at the forefront of an episode as the main protagonist.
The basic plot of this episode is that the Dean is given some money to make a new commercial for Greendale Community College and instantly takes on the persona of an out of control director claiming no one understands his artistic vision. Slowly everyone becomes a little bit crazy at the stress of it all.
Jeff films some of his scenes in front of a Luis Guzman statue knowing that legally they can't use those images without Guzman's consent, when Guzman is notified of this he volunteers to be in the commercial further pushing the Dean's ego as artistic visionary.
This episode is just full of hilarity from beginning to end.