Iwan Rheon got his face punched several times.
The actor playing Ramsay Snow (later Bolton) got punched in the face by Kit Harington several times. During the fight scene between bastards,
Jon Snow got a bit carried away and hit his set partner’s face pretty hard. According to Harington, Rheon took it quite professionally. Anyway, it’s unlikely that he was actually happy to be on the receiving end of those punches.
Emilia Clarke was feeling nauseated during the heart eating scene.
The actress who plays Daenerys Targaryen confessed that this scene was pretty hard for her. During shooting, she had to eat 28 “horse hearts” made of berry jam.
According to Emilia Clarke, the mixture was made of dry pasta and tasted like bleach. That’s why she always had a basket nearby in case she wasn’t able to hold back her vomit reflex.