In ET's exclusive first look at the "Duty is the Death of Love" featurette from the Game of Thrones Season 8 4K Blu-ray and DVD set, Clarke opens up about the "hell" she was in learning Dany's final speech -- and how it all came together with "magic."
"I knew that speech was going to be really important, and I spent a huge amount of time learning it. And for the first time in my whole Game of Thrones career, I got that word perfect," she says of Dany's speech to her army in the series' final episode, which features a lot of Dothraki.
"I'm being so brutally honest here -- I was in hell learning that speech. This pretend language was literally eating me up. I couldn't do it," Clarke remembers. "And then, magic happened. I woke up in the morning, went on, and it all came out. I was probably fighting not what I was fighting, but what Dany was doing."
That speech served as a turning point for Dany and the series, as Jon Snow (Kit Harington) realized that the Dragon Queen had dreams larger than just conquering King's Landing. See what producers David Benioff and D.B. Weiss said about the scene in the video player above.
Game of Thrones Season 8 4K, Blu-ray and DVD set, along with theGame of Thrones: The Complete Collection wooden box set and Game of Thrones: The Complete Series Blu-ray and DVD set, are all available on Dec. 3.