https://www.vice.com/en_us/article/pajg7v/hbo-digitally-erased-that-coffee-cup-from-game-of-thrones

Forget the Iron Throne. The object that attracted the most intense scrutiny in the latest episode of HBO’s Game of Thrones was a disposable coffee cup casually placed in front of Emilia Clarke, who plays Daenerys Targaryen on the show.

HBO copped to the sloppy mistake with the above statement, which is more troll than explanation. But despite the light humor, an HBO spokeswoman confirmed on Tuesday that the cup has been digitally edited out of the scene.