For the real story, read "Miracles on the Water : The Heroic Survivors of a World War II U-Boat Attack" by Tom Nagorski. Or you can read a good summary at
https://warfarehistorynetwork.com/article/the-lost-children-of-1940/
https://warfarehistorynetwork.com/article/the-lost-children-of-1940/
Based on true stories, at times heartbreaking, yet sometimes predictable . A sad frightening and just plain horrible time in history. People doing their best to help children, and sometimes that best was not enough.