>>9494582>>9494589The Dambusters was a very "DUKE" operation hence interest from Australia, New Zealand, Canada (where they made Lancasters as well), South Africa etc. Second only to the Spitfire, people have quite deep feelings about Lancasters, the point is its not just a history/aviation nerd thing. The film obviously helped of course.
https://youtu.be/baAqOQu7p7o