Bel Armenteros was born in Madrid in 1984. She graduated in Philosophy at Complutense University in 2008, and finished the Filmaking degree at Cinema School of Madrid (ECAM) in 2010.

Her shortfilm Sin palabras, a shortfilm shooting in 35 mm, has been selected in more than 90 film festivals around the world, and has won a lot of awards included Los angeles latino international film festival or Alucine Toronto in Canada.

She filmed more shortfilms: Amanda, Nana, Disculpa, Dentro de la caja. She directed  Colección Espejo documentary too.
She teached Cinema in a lot of cinema schools like, Creando Cine, Acción- Escena, Primera Toma Coach, Central de cine, Primer Plano school, Mario Bolaños or Sing and Dance project at Madrid and she founded a horror producer house in Madrid, Siniestra films.

Her first collaborated feature film Dark Girls was premiered at Sitges international film festival in 2022. Now she´s writting  her first feature film and preparing a new horror shortfilm "Our father." ​