Fanny, een 17-jarige scholiere uit Frankrijk, gaat op uitwisseling naar Duitsland. In Leipzig ontmoet ze haar penvriendin Lena, die even oud is als zij en zich al volop bezighoudt met politiek activisme. Om indruk te maken op Lena verzint de verlegen Fanny een ander leven voor zichzelf, maar raakt al snel verstrikt in haar web van leugens.
Nee, helaas is Langue étrangère nog niet beschikbaar op Netflix in Nederland.
| Writing | Claire Burger | Screenplay |
| Production | Leïla Fournier | Casting |
| Camera | Julien Poupard | Director of Photography |
| Writing | Léa Mysius | Co-Writer |
| Production | Jean-Pierre Dardenne | Executive Producer |
| Production | Luc Dardenne | Executive Producer |
| Production | Olivier Père | Co-Producer |
| Sound | Rebeka Warrior | Original Music Composer |
| Editing | Frédéric Baillehaiche | Editor |
| Editing | Claire Burger | Editor |
| Production | Tanja Schuh | Casting |
| Costume & Make-Up | Isabelle Pannetier | Costume Design |
| Directing | Yann Chemin | Second Assistant Director |
| Directing | Julie Gouet | First Assistant Director |
| Directing | Circé Pfersdorff | Third Assistant Director |
| Art | Thomas Laporte | Props |
| Sound | Jeanne Delplancq | Dialogue Editor |
| Sound | Anna Devillaire | ADR Mixer |
| Sound | Olivier Goinard | Sound Re-Recording Mixer |
| Sound | Fanny Martin | Sound Editor |
| Sound | Maxi Pongratz | Foley Artist |
| Lighting | Daniel Pauselius | Gaffer |
| Camera | Matthieu Etenne | Key Grip |
| Camera | Thomas Albert | Additional First Assistant Camera |
| Production | Laetitia Dom | Production Coordinator |
| Directing | Claire Burger | Director |
| Production | Marie-Ange Luciani | Producer |
