Vote: Will you watch Fifty Shades Darker?

Despite being ridiculed by critics, the Fifty Shades Of Grey book was a runaway hit for author E.L. James.

The first film adaptation, starring Jamie Dornan and Dakota Johnson as the S&M-loving businessman and his student lover, was a huge box office success when it was released two years ago.

Now Christian and Ana are back for the second installment in the trilogy - Fifty Shades Darker - just in time for Valentine's Day.

Following their response to the first movie and the books, it's likely critics won't be enthralled, but plenty of fans of the book can't wait to see the new film.