Erna i krig
- Anno: 2020
- Nazione: Belgium, Denmark, Estonia
- Genere: Dramma, Guerra
- Studio: Nimbus Film, Nafta, Entre Chien et Loup
- Parola chiave: based on novel or book, world war i, motherhood, mother son relationship
- Direttore: Henrik Ruben Genz
- Cast: Trine Dyrholm, Ulrich Thomsen, Anders W. Berthelsen, Elias Munk, Ari Alexander, Sylvester Byder