Beautiful But Dangerous (also released as La donna più bella del mondo/ The World's Most Beautiful Woman) is a 1956 French-Italian comedy drama romance film directed by Robert Z. Leonard. The picture is a biopic about Italian opera soprano Lina Cavalieri. The film was a co-production between Italy (where it was released as La donna più bella del mondo) and France (where is known with the title La belle des belles). For this film Gina Lollobrigida was awarded with a David di Donatello for Best Actress.