Open this photo in gallery: Film still of Irena's Vow.Handout If you saw the world premiere of Louise Archambault’s Holocaust drama Irena’s Vow at last year’s Toronto International Film Festival, you may wish to see it again. You were short-changed emotionally. “The screening was very moving, but it was cut a bit short,” Archambault says. “We didn’t get the correct ending because of technical problems.” Irena’s Vow, which opens Friday, is based on a true story. It stars Sophie Nélisse as a former nurse who risks her life to save a dozen Jewish men and women in Nazi-occupied Warsaw. The...