Happy (kinky) Valentine's Day: 5 BDSM-themed films, far sexier than 50 Shades of Grey

50 Shades of Grey, the most anticipated film of the year, had its wide theatrical release yesterday and so far it has received mixed reviews by both the critics and the audience.

The movie, which is based on E.L James' erotic book, was expected to be extremely racy, full of BDSM scenes and steamy sex. Instead, the eager audience was granted just 15 minutes of sex throughout the two hour runtime and even those were considered "flaccid" compared to the book.

If you are one of those people who were disappointed by this mainstream, Hollywood version of BDSM and found it too "vanilla" for your taste, don't fret. Here's a list with 5 kinky films that are far sexier than 50 Shades of Grey. Enjoy? responsibly!

1. The night porter (1974)

The controversial art film by Italian director Liliana Cavani, starring Dirk Bogarde and Charlotte Rampling, explores the psychological condition known as Stockholm Syndrome, through a sadomasochistic relationship between a Holocaust survivor and a former Nazi officer.

2. The Secretary (2002)

Steven Shainberg's sexy and daring comedy tells the story of a young, shy woman, recently released from a mental hospital, who gets a job as a secretary to an intimidating lawyer. Soon, their employer-employee relationship turns into a sexual, sadomasochistic one.

3. In the Realm of the senses (1976)

Nagisa Oshima's masterpiece tells the story of Sada Abe, a woman whose affair with her master led to a sexual obsession which then came to a violent end.

4. Story of O (1975)

Beautiful O is taken by her boyfriend, Rene, to a bizarre retreat, where she is trained in bondage and sexual perversion. Directed by Just Jaeckin.

5. Last Tango in Paris (1972)

A young Parisian woman meets...