Impressively made and powerfully themed WW2 story following the captain and crew of the Compass Rose, escorting allied convoys in waters patrolled by U-boats. Jack Hawkins gives a brilliant performance as Cmd. Ericson, leading a largely inexperienced crew against impossible odds, and who has his nerves rattled in some incredibly tense and surprisingly dark scenes. He is ably supported by a cast including Donald Sinden and Denholm Elliott. Certainly one of the pinnacles of British war movies, shorn as it is of all sentimentality and propaganda.

One of the greatest war movies. Almost flawless. ***½ out of ****

https://archive.org/details/the-cruel-sea-1953 With Portuguese subtitles, should you desire them.