Invader ZIM Easter Egg - FBI Warning

Start watching the episode. As soon as it shows the TV screen playing GIR's movie, pause and play the episode slowly. When the credits for the movie appear on screen you will see the following (though you'll have to play it slowly to see some of them):

The General Ress Stevel
Sarge Steve Ressel
Private Hack Kriz Graf
Colonel Colon Ion

Ress Stevel and Steve Ressel
are references to the director, Steve Ressel. Kriz Graf and Ion are references to the storyboard artists, Chris and Ian Gram.

After that, play the episode normally. Pause when it shows the FBI warning. If you want read through the warning (It's pretty funny), but make sure you look at the bottom of the screen. Towards the left side it says "Show 11B", which is this episode's number. Towards the left, it says "Zimpact" (The show is called invader ZIM).