The Hunt for Red October (film) unclassified sections of both and to use in set and prop design. was used for the scene in which Baldwin is dropped from a helicopter to the submarine. Key cast and crew members rode along in subs, including Alec Baldwin and Scott Glenn, who took an overnight trip aboard the commanded by then Commander Thomas B. Fargo. Glenn based his portrayal of Commander Bart Mancuso on Fargo. Some of the principal cast had previous military service which they drew on for their roles. Sean Connery had served in the Royal Navy, Scott Glenn in the United States Marine Corps and
The Hunt for Red October are many deviations, including "Red October" traveling up the Penobscot River in Maine to dry dock, and the "caterpillar drive" being described as a magnetohydrodynamic drive system, essentially, "a jet engine for the water". The film received mainly positive reviews from critics, holding an 87% rating from Rotten Tomatoes based on 66 reviews. It was the 6th top-grossing film of the year, generating $122 million in North America and more than $200 million worldwide in box office. In a 1991 interview, Clancy remarked of the film's success: "It was reasonably true to the spirit of the book, although the movie