It’s the film release everybody has been talking about. The romantic thriller Fifty Shades of Grey, starring Jamie Dornan and Dakota Johnson, hits theatres this weekend just in time for Valentine’s Day.

The hotly anticipated film is based on the first installment of the book triology of the same name by EL James, which originated as Twilight fanfiction and has sold over 100 million copies worldwide in over 50 different languages.

Heartthrob Jamie plays Christian Grey, a 27-year-old billionaire tycoon with a dark past who crosses paths with beautiful ingénue Anastasia Steele, played by Dakota.

Ahead of the film’s big screen debut this weekend, check out these 15 surprising facts you may not already know about the racy franchise which has taken the world by storm…

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