Clip is narrated by Tywin Lannister - aka Charles Dance

A new behind the scenes video of Game Of Thrones has been revealed – scroll down and click to watch.

The clip – which is narrated by Charles Dance’s powerful and tyrannical alter-ego Tywin Lannister – gives a five minute potted history of the genesis and development of the HBO show.

The fourth series of Game Of Thrones will premiere on Sky Atlantic on April 7 at 9pm, and will be broadcast just 24 hours after it is shown in the US. The new series will see an influx of new characters joining the cast, with Sherlock actor Mark Gattis and Gangs Of New York‘s Roger Ashton-Griffiths both joining the production. Meanwhile, the role of Prince Oberyn Martell will be played by Chilean actor Pedro Pascal. Pascal’s CV includes recurring roles on US TV series The Good Wife, Graceland and Red Widow. Prince Oberyn Martell is also known as The Red Viper. In the novels, he’s a lusty, hot-headed character with a quick wit and sharp tongue who’s rumoured to be bisexual.

Game Of Thrones, which is adapted from George RR Martin’s series of fantasy novels A Song Of Ice And Fire, has been a huge hit since premiering in 2011 and has won numerous television gongs including Golden Globes, BAFTAs and Emmys.