Futurama: Into the Wild Green Yonder Easter Egg - A Very Obscure Futurama DVD Extra

In the "features" section of the DVD, go down until you highlight "Penn Jillette Mania." Now go right to highlight the teller's head in a jar. Select this, and you will hear what Zapp Brannigan says at the end of the movie, which is about an interesting incident that happened to the crew just before recording.