Game of Thrones 'Hodor' teams up with Big Bang Theory star for an important message

Kristian Nairn (Hodor on Game of Thrones) and Mayim Bialik (Amy in The Big Bang Theory) have come together on a new viral ad for Sodastream.

The video takes place in a world obsessed with plastic bottles and looks into some of the effects that they have on the enviroment. 

The funny video has been viewed over 4.5 million times online.