Editing The Hunt for Red October (section)

===Film===
{{Main|The Hunt for Red October (film)}}
The novel was adapted as a [[The Hunt for Red October (film)|feature film]], which was released in the United States on March 2, 1990. Captain Marko Ramius was played by [[Sean Connery]], while [[Alec Baldwin]] played Jack Ryan. It serves as the first entry in the [[Jack Ryan (film series)|Jack Ryan film series]], which would later follow a chronological order differing from the novels. The movie is a nearly faithful depiction of the novel even though there are many deviations, including ''Red October'' traveling up the [[Penobscot River]] in Maine to dry dock, the omission of the [[Royal Navy]] task force including Ryan's time aboard {{HMS|Invincible|R05|6}}, and the "caterpillar drive" being described as a [[magnetohydrodynamic drive]] system, essentially, "a jet engine for the water", rather than a drive powered by a series of mechanical impellers inside flow tunnels. Although in both the novel and movie, the caterpillar drive was supposed to be undetectably silent.

The film received mainly positive reviews from critics, holding an 88% rating from [[Rotten Tomatoes]] based on 74 reviews.<ref>{{cite web |title=The Hunt for Red October (1990) |url=https://www.rottentomatoes.com/m/hunt_for_red_october |website=Rotten Tomatoes |access-date=4 August 2018}}</ref> It was the sixth top-grossing film of the year, generating $122 million in North America and more than $200 million worldwide in box office.<ref>{{cite web| title = The Hunt for Red October| website = Box Office Mojo| url =http://www.boxofficemojo.com/movies/?id=huntforredoctober.htm| access-date = 2007-12-03}}</ref> In a 1991 interview, Clancy remarked of the film's success: "It was reasonably true to the spirit of the book, although the movie had a lot of technical errors in it and some changes in the story which I do not think is necessary. But you have to remember that the printed word and visual representation on the screen are two different art forms and they have very different roles."<ref>{{cite book |title=The Tom Clancy Companion |page=58 |edition=Revised}}</ref>