Movie · 1940
Is 21 Days based on a book?
Quick answer
Yes. 21 Days is based on the book The First and the Last by John Galsworthy.
The movie was released in 1940.
The book behind 21 Days
Common questions
Is 21 Days based on a book?
Yes. 21 Days is based on the book The First and the Last by John Galsworthy.
Who wrote the book 21 Days is based on?
The First and the Last was written by John Galsworthy.
Should I read the book before watching?
If you like knowing the full story and characters first, read The First and the Last before you watch. Adaptations often change or cut plotlines, so the book is a different experience even if you've seen the movie.
More screen adaptations of John Galsworthy's books
- The Forsyte Saga (TV, 1967)
- That Forsyte Woman (film, 1950)
- The Forsytes (TV, 2025)