"The Amazing Mr. Blunden" is a British fantasy film released in 1972, directed by Lionel Jeffries. The story follows a kind-hearted man named Mr. Blunden, who appears to be a mysterious figure. He enlists the help of two children, Lucy and Jamie, to save the lives of two siblings from the past, Georgie and Alice, who are in danger. The film combines elements of adventure and time travel, as the children embark on a journey to uncover the truth about Mr. Blunden and the tragic fate of the siblings. It explores themes of friendship, bravery, and the importance of helping others.