The 28-year-old actress, who is engaged to Romain Dauriac, said: "I think porn, like anything else, can be enjoyed. It can be productive for both men and women."

However, Scarlett did acknowledge that there should be a limit to how much it's watched. Referring to the lead character Jon in her new movie Don Jon, Scarlett said: "If I found out my boyfriend watched that much porn I would be totally flabbergasted, for sure."