Amanda Seyfried who plays the lead role in the recently release movie, " Lovelace' has said in a statement to bbc.co.uk that Hollywood should make more films which discuss sex. It is an imperative part of film making and is nothing to shy away from.

'Lovelace' is based on the story of a porn star Linda Lovelace who in spite of being an eminent personality of 1970's Linda came into limelight after making her debut in a pornographic the film 'Deep Throat'. In the 1970 there were many films like 'Deep Throat' and many were even banned for their adult content. It was the era when sexual liberation was happening and even mainstream Hollywood was exploring flms based on sex. John Schlesinger's, Midnight Cowboy dealt with adult themes which not only proved to be success at Box Office but won him an Oscar.

Here is look at the at films which like Linda Lovelace's' 'Deep Throat' became a hit:

'Behind The Green Door'

Starring Marilyn Chamber, Behind the green doors released six month after 'Deep Throat' . Before starring in the film, hard-core film, Chambers was the model for Ivory Snow Detergent.

'EMMANUELLE'

Release in 1974, Emmanuelle was an adult movie and TV series which became as popular as Deep Throat and starred Sylvia Kristel as a married woman. The film ran for nine years at Paris Triomphe cinema.

'ALICE IN WONDERLAND: AN X-RATED MUSICAL FANTASY'

A twisted version of Lewiss Caroll movie Alice in Wonderland was turned into an adult movie by Bill Osco of Flesh Gordon Fame. It was released in 1974 and became quite popular amongst the audience and left the critics surprised.

'THE DEVIL IN MISS JONES'

'Deep Throat' Director, Gerard Damiano made another hit THE DEVIL IN MISS JONES' starring Georgina Spelvin. The film was based on sin of 'Lust' which Spelvin's character committed in the film .