The DVD extras on the shark thriller Deep Blue Sea contain bountiful "making of" information. "When Sharks Attack!" is a documentary highlighting the blend of real sharks, models, and computer effects that were used in the film. While far from comprehensive, seeing the actors swimming with real sharks is engaging. An explanation of the use of music within the film is also interesting. "The Sharks of the Deep Blue Sea" is a short documentary more specifically aimed towards the technology used for the models of the sharks. There is overlap between the two documentaries. Deleted scenes can be viewed with commentary by director Renny Harlin, who explains why each scene was left out. The film as a whole can also be watched with the commentary of the director and one of the film's stars, Samuel L. Jackson. Jackson's commentary adds interest and amusement but unfortunately is only featured in the first half of the track. A theatrical trailer and production stills are provided. The Deep Blue Sea package also has DVD-ROM features, including screensaver, poster, chat room links, interview clips with cast and production crew, and web links to other shark sites that can all be accessed from the original website.