Here’s a first look at Helena Bonham-Carter’s one life…

See-Saw Films has released first look images of James Hawes’ One Life, starring the 57-year-old part-Spanish English actress, which will receive its world premiere as a Toronto International Film Festival (TIFF) special presentation in September.

Written by Lucinda Coxon and Nick Drake, the film is based on the book, If it’s not impossible… The life of Sir Nicholas Winton by Barbara Winton.

It tells the true story of Sir Nicholas ‘Nicky’ Winton, a young London banker who, on the eve of World War II, saved 669 children from the Nazis – more than the number of children who survived the Holocaust in Czechoslovakia.

With war fast approaching, Winton visited a recently annexed Prague and witnessed first-hand Jewish refugee families with little to no shelter and food. He immediately realized it was a race against time to see how many children he and his friends could rescue before time ran out.

Fifty years later, in 1988, Winton is haunted by the fate of the children he wasn’t able to bring to safety in England. It’s not until a live television show That’s Life surprises him with the surviving children – now adults – seated all around him that he can finally make peace with the loss he had carried for five decades.

Anthony Hopkins and Johnny Flynn both play Nicholas Winton at different stages of his life. Bonham-Carter plays Winton’s mother, Babi. The cast also includes Jonathan Pryce, Lena Olin, Romola Garai and

The film is a Warner Bros. Pictures, BBC Film and MBK Productions presentation in association with Cross City Films, Filmnation Entertainment and Lipsync and is a See-Saw Films Production.

TIFF takes place September 7-17.