Filmed on authentic locations in Poland by meticulous Canadian director Louise Archambault, Irena’s Vow is one of the most astounding true stories to ever emerge from the ashes of the Holocaust. In 1939, when the Nazis invaded Warsaw and the hospital where she worked was bombed, a 19-year-old Catholic nurse named Irena Gut (Sophie Nélisse, from the popular TV series Yellowjackets) was recruited by the occupying Germans to work against her will for their cause in a sewing factory. Shocked and mortified after witnessing the brutal murders of a mother and her baby, Irena made a silent vow to help a dozen friends and colleagues, all Jewish tailors from the sewing factory, survive their horrid fates by hiding them in the coal bin in the cellar.–Observer