Naomi Watts says she had not seen Game of Thrones before she gave a nod to starring in its spin-off, but finished the HBO series in three months after she was âhookedâ to it. The actor, who is set to headline the much-anticipated prequel of the epic fantasy show, said her brother, photographer Ben Watts egged her on to watch it. âI didnât start watching until I was approached about this job. But my brother, who is heavily into it, told me, âUnder no circumstances are you going to turn this downâ,â Watts told a magazine. She added that as soon as she started watching GOT, she âwas in- hook, line and sinkerâ.Â
 The 50-year-old actor said she now has a better understanding of the showâs fandom and has an idea on how important her stint in the spin-off could be for her career. âI still have fears about that. I donât really know what to prepare for,â she added. According to HBO, the new show will be set thousands of years before the events of GOT. It will chronicle the worldâs descent from the golden age of heroes into its darkest hour.âPTIÂ