Sam Taylor-Johnson in the director’s chair.

‘Pacific Rim’ and ‘Sons of Anarchy’ star Charlie Hunnam will star as Christian Grey, the lead male character in Universal Pictures and Focus Features’ highly anticipated film adaptation of ‘Fifty Shades of Grey,’ it was announced today.

Hunnam joins Dakota Johnson (‘Cymbeline,’ ‘Ben and Kate,’ ’21 Jump Street’), who will star opposite him as Anastasia Steele. The film is being directed by Sam Taylor-Johnson (‘Nowhere Boy’) and produced by Michael De Luca and Dana Brunetti alongside E L James, the author of the #1 bestselling book on which the film is based. The screenplay is by Kelly Marcel.

‘Fifty Shades of Grey’ follows the relationship of 27-year-old billionaire Christian Grey and college student Anastasia Steele. Subsequent novels in the series, ‘Fifty Shades Darker’ (September 2011) and ‘Fifty Shades Freed’ (January 2012) explore the couple’s deepening relationship. To date, the trilogy has sold over 70 million copies worldwide in e-book and print, making it one of the fastest selling book series ever.