Easter egg: In the Special Edition DVD (with the white slipcover), in the Imaging Station, if you go to the top of the stack of the videotapes and hit the right arrow button, the TV screen changes to say, "They mostly come at night. Mostly." Hit "enter" to see a trailer for "Aliens," a movie James Cameron directed.
Easter egg: On the feature disc in the menu where you can access the director's commentary and deleted scenes, click to the right to see a baseball player light up. The director will explain who the voice is.