Desc: Lest We Forget: Directed by Léonce Perret. With Rita Jolivet, Hamilton Revelle, L. Rogers Lytton, Kate Blancke. A story of the First World War, told in semi-documentary style, focusing on the iniquities of the German war machine, and with its dramatic center the sinking by a German U-boat of the passenger liner Lusitania in 1915.