HBO released a 15-minute featurette for 'Game of Thrones' season 4 on Sunday, revealing bigger dragons, an intriguing new character and more action than ever before.

HBO is set to release a 15-minute featurette for the highly anticipated fourth season of 'Game of Thrones.'

'Game of Thrones' fans who like Brienne of Tarth (Gwendoline Christie) will be pleased to know that she'll have a lot to do in season 4.

A new 'Game of Thrones' season 4 trailer has been released, featuring behind-the-scenes footage and new interviews with the cast and crew.