The pilot is the first Game of Thrones episode recorded, but was never broadcast. The recordings took place between October 24 and 19 November 2009 in Northern Ireland and Morocco. The pilot was directed by Thomas McCarthy.
Will the pilot ever be transmitted or released, it is not known. It is said to have cost between 5 and 10 million dollars.
The cast of the pilot is quite different to the rest of the series. For various reasons, HBO replaced some actors. Below is an overview:
Another difference is what is included in the show. Scenes for the pilot were filmed in Scotland and Morocco The Scottish Doune Castle served as Winterfell. Most scenes with Daenerys were recorded in Morocco, these are scenes used by Ridley Scott’s Kingdom of Heaven. In the official first episode, these locations are not included.
Author George R. R. Martin has a cameo as a Pentoshi nobleman with a giant hat, included for the Game of Thrones pilot purposes, this scene is the first official clip that we know that is not included in final episode. However, there are at least three scenes from the pilot that were included in the official first episode: