- Awesome Music
- Artistic License Science: So very, very much of it in the film.
- Colbert Bump: The show would probably be a lot more obscure now without Mystery Science Theater 3000 having featured a Running Gag of Gypsy's obsession with Richard Basehart.
- Seasonal Rot: The television series began with largely the same tone as the 1961 film, but by the fourth season they'd gone quite loopy and neck-deep into fantasy elements. Whether that's a good or bad thing is up for debate, but it's hard to believe that the show moved from "City Beneath the Sea" to something like "The Deadly Dolls" (the latter is exactly what it sounds like: a story about cursed puppets that would seem more at home in The Twilight Zone (1959) than in what began as "serious" Sci-Fi).
- Special Effects Failure: The giant squid in the film. Also, the shark is clearly a plastic toy.
YMMV / Voyage to the Bottom of the Sea