Easter egg: In the Special Edition DVD (with the white slipcover), if you go to the menu which tells about the equipment of "The Abyss", go to the "surface", where it talks about the wave and the Benthic Explorer. If you hit the up arrow on the wave, the plane flying overhead is highlighted. Select it to see a trailer for "True Lies," a movie that 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.