The first Star Trek film, which brought the original cast back to the screen for the first time after the cancellation of the groundbreaking TV series, gets a thorough overhaul for its presentation on DVD. The film has been given a letterboxed transfer in its original 1.85:1 aspect ratio, as well as new Dolby Digital 5.1 and Dolby Digital Surround sound mixes, supervised by Robert Wise, the film's director. Wise also teams up with special effects artists Douglas Trumbull and John Dykstra, composer Jerry Goldsmith, and actor Stephen Collins for a bonus commentary track; Goldsmith's score has also been isolated on a separate track. Michael Okuda, who co-wrote The Star Trek Encyclopedia, also contributes an essay on the film. The movie has also been re-edited by Wise for this edition with refurbished and restored special effects. A bonus disc includes footage from the original theatrical release and the broadcast television presentation that Wise deleted for this cut; three separate documentary featurettes; highlights from the film's storyboards; and a number of theatrical trailers and commercial spots for the film, including one created specially for this new edition of the film.