Filibus is a 1915 Italian silent adventure film directed by Mario Roncoroni and written by the future science fiction author Giovanni Bertinetti. It features Valeria Creti as the title character, a mysterious sky pirate who makes daring heists with her technologically advanced airship. When an esteemed detective sets out on her trail, she begins an elaborate game of cat and mouse with him, slipping between various male and female identities to romance the detective's sister and stage a midnight theft of a pair of valuable diamonds.