In the cast list, Super Seal Rover is credited as Big Geek and Mini Rover Mk II is credited as Little Geek. These are the actual models used for the unmanned submarines.
There are no opening credits, save for the title, which emerges from darkness. The camera then follows down the "Y" of the title, and dissolves into the underwater blue of the ocean.
The opening 20th Century Fox logo doesn't have the usual fanfare, only the sound of sonar pings in the background.
There was a dedication for Captain Kidd Brewer Jr. added at the beginning of the end credits of the special edition.
The submerged "Explorer" platform carries a Louisiana license plate "34B241" and one other plate on which the state is not legible "XA-9199".