17. Matador
Spanish director Pedro Almodovar is no stranger to exploring non-mainstream sexual preferences in his movies, often taking homosexuality and transgender issues as the basis for the characters who inhabit his stories. Matador takes the idea of domination and sadism to the extreme and features a murderer who kills her prey during sex, sinking a sharp pin into their neck which she keeps concealed in her hair. Sumptuous-looking and featuring Antonio Banderas in a role which was to eventually catapult him into the international spotlight, Matador is an intelligent thriller which flirts with sexual taboos.