FIRST LOOK: Watch the trailer for the Nicholas Winton biopic starring Anthony Hopkins

The first official trailer from One Life has now been released, adding more details about the upcoming biopic centered on Sir Nicholas Winton. The trailer shows Anthony Hopkins playing Winton as an old man, Johnny Flynn as his younger self in 1939, and Helena Bonham Carter, who plays Winton’s mother, Babette Winton. The film has been getting mixed reviews, with IndieWire pointing out how "the film’s bid for consistent quality is kneecapped by a ridiculously on-the-nose script."

Other cast members include Jonathan Pryce, Lena Olin, Alex Sharp, and Ramola Garai. Directed by James Hawes and written by Lucinda Coxon, the film is based on the book If It's Impossible by Nicholas' daughter, Barbara Winton.

The historical drama One Life tells the story of Nicholas Winton, a British man who saved several hundred Jewish children from Czechoslovakia before the start of World War II. The film focuses on Winton's determination in his youth, his work related to Kindertransport rescue efforts taking Czechoslovak children to Britain, and his later feelings of regret for not helping more.

The trailer opens with a seminal scene of the movie, which sees Winton head to the BBC television program That's Life in 1988. A famous clip from the show captures Winton sitting in an audience unaware that he is surrounded by the now-adult people he saved and their families.

Often described as a British Schindler, a reference to the Moravian-born German industrialist who saved around 1,200 Jews during the Holocaust, Winton came to life on the big screen several times in the past.

Works devoted to the humanitarian hero include the 1999 feature film All My Loved Ones, from Slovak-born director Matej Mináč; the 2002 Emmy-winning documentary Power of Good: Nicholas Winton; and the 2011 documentary Nicky’s Family, which included dramatic re-enactments.