The first clip of Fifty Shades of Grey has been unveiled, Digital Spy reveals.

Jamie Dornan and Dakota Johnson feature in the preview as the erotic drama's leads Christian Grey and Anastasia Steele.

The screen adaptation of EL James's erotic novel by director Sam Taylor-Johnson also features Luke Grimes, Rita Ora and Marcia Gay Harden in supporting roles.

The film has been given an R rating in the US and an 18 certificate in the UK for "strong sex and nudity".

Taylor-Johnson recently admitted that working on the film in recent months has felt like "walking a knife edge".

Meanwhile, Dornan has revealed that he had to visit a sex dungeon in preparation for the role.

Fifty Shades of Grey opens in time for Valentine's Day on February 13 in the UK and the US.