Wales' highest village and why it's become an unlikely backdrop for major film and TV productions Trefil in Blaenau Gwent often doubles as an alien planet or far away desert in major film and TV productions The village of Trefil, near Tredegar (Image: James Davies Photography) Never miss a big story in Blaenau Gwent again with our daily emailInvalid EmailSomething went wrong, please try again later. Sign Up We use your sign-up to provide content in ways you've consented to and to improve our understanding of you. This may include adverts from us and 3rd parties based on our understanding. You can unsubscribe at any time.More info