“Nicky, you must know we cannot save them all. You have to forgive yourself that.”

Warner Bros. UK released a powerful first trailer for James Hawes’ ‘One Life,’ starring Oscar-winning actor Anthony Hopkins and Johnny Flynn as Sir Nicholas “Nicky” at different stages of his life. The film is based on an extraordinary true story of Nicholas Winton who in 1939 traveled to Prague and saved 669 children from the Holocaust.

Official synopsis:

“ONE LIFE tells the true story of Sir Nicholas ‘Nicky’ Winton, a young London broker who, in the months leading up to World War II, rescued 669 children from the Nazis. Nicky visited Prague in December 1938 and found families who had fled the rise of the Nazis in Germany and Austria, living in desperate conditions with little or no shelter and food, and under threat of Nazi invasion. He immediately realised it was a race against time. How many children could he and the team rescue before the borders closed?

Fifty years later, it’s 1988 and Nicky lives haunted by the fate of the children he wasn’t able to bring to safety in England; always blaming himself for not doing more. It’s not until a live BBC television show, ‘That’s Life!’, surprises him by introducing him to some surviving children – now adults – that he finally begins to come to terms with the guilt and grief he had carried for five decades.”

The film also stars Johnny Flynn, Helena Bonham Carter, Lena Olin, Romola Garai, Alex Sharp, Marthe Keller and Jonathan Pryce.

In UK cinemas January 1. No US release has been set.