Il sorriso del ragno
- annos singulos: 1971
- Patriam: Italy
- genus: Thriller
- Studio:
- keyword: murder, crime syndicate, jewel robbery
- Director: Massimo Castellani
- cast: Marília Branco, Thomas Hunter, Έλενα Ναθαναήλ, Στέφανος Στρατηγός, Gabriele Tinti, Leopoldo Trieste