Deep Blue Sea - Production

Production

According to an interview in the Los Angeles Times, "Deep Blue Sea" was originally inspired by Australian screenwriter Duncan Kennedy's witnessing firsthand "the horrific effects of a shark attack when a victim washed up on a beach near his home." This brought on a recurring nightmare of "being in a passageway with sharks that could read his mind." The interview mentions that Kennedy "purged those dreams by sitting down and writing a screenplay that eventually evolved into (the) Warner Bros. thriller, "Deep Blue Sea."" Kennedy acknowledged that "whenever anyone mentions a shark movie, they naturally think of Steven Spielberg. The problem with approaching a shark movie is how do you do it without repeating 'Jaws' ?"

Renny Harlin describes the production on the film's commentary. The film was shot entirely in Mexico. The sets used for the interiors of the facility were built so that they could be submerged in a water-tank to create the illusion of the facility sinking practically. However, for windows, separate water-tanks with lights shining through them were used.

The film made an extensive use of digital doubles for actors being eaten by sharks. Depending on the scenes, the sharks were either animatronic (when interacting with actors) or computer generated (when in water). As an added homage to Jaws, the license plate pulled from the shark's teeth by Carter at the beginning of the film, is the same plate found in the tiger shark carcass from the 1975 Steven Spielberg film.

Samuel Jackson was initially offered the role eventually played by LL Cool J. Jackson's management didn't like the idea of him playing the role of the chef and so Harlin created the role of Russell Franklin for him.

Speaking with the Los Angeles Times, Screenwriter Kennedy noted that in "Jaws," the shark was 25 feet long, so Harlin had to do Spielberg one better. "He increased to 26 feet," Kennedy said.