Two French girls get lost in the woods and accidentally enter the realm of sorceress Morgana Le Fay - who gives them the choice of either staying young forever as her lovers, or rot in a dungeon for eternity.
Girl Slaves of Morgana Le Fay is a 1971 French film by Bruno Gantillon, an erotic horror tale involving Morgan le Fay and a castle full of women in the French countryside. Morgan rules the island Avalon as if it were Lesbos in a lesbian exploitative film praised by critics for its setup and characters, and named a "neglected Eurotrash classic".