Beth played the lead role in the 2005 French mystery film "Through the Forest" directed by Jean-Paul Civeyrac. She also played a role as Mary–Jane in a 2009 horror French film "Sodium Babies". In 2018 she played a role in the film "An Impossible Love" by director Catherine Corsini: Beth then received a nomination for the "Best Female Newcomer" at the 2019 Cesar Awards which is the national film award of France.