Game of Thrones Episode Features A Surprise Starbucks Coffee Cup

Game of Thrones' newest controversy is about something seen in the most recent episode.
Season 8 episode 4's big party sequence came with a major visual error, says Comicbook.com.
It is true, a Starbucks coffee cup was spotted in the halls of Winterfell.
To make the mistake even worse, showrunners David Benioff and D.B. Weiss are in the exact scene.
Weiss and Benioff were part of the crowd watching Tormund drunken praise of Jon Snow.