The final season of 'Game of Thrones' is going to cost HBO $15 million per episode

Game of Thrones dragon HBO

Get ready for some more breathtaking special effects, because the final season of Game of Thrones looks to be the most expensive yet.

A report in Variety has claimed that the eighth season – which comprises six episodes – will have a budget of a whopping $15 million per episode.

It's an incredible figure, but it's also worth bearing in mind that the last six episodes could very well all be feature-length.

How does the budget compare to previous seasons?

Game of Thrones Helen Sloan/HBO

There are rumblings that season two cost $6 million an episode. For season six, it was said to be at $10 million an episode (totalling $100 million for the whole season).

The budget for the most recent season (which had seven episodes), however, is a bit more contentious.

Some sources say it remained at $10 million an episode, but a cinematographer who works on the show theorised (he literally prefaced with "I don't know the facts and figures") that season seven may have had the same $100 million budget but spread across fewer episodes (which would make it $14 million per episode).

Does the season eight budget include shooting multiple endings, as rumours suggest?

Jaime Lannister actor Nikolaj Coster-Waldau doesn't think so, reasoning: "They know how expensive it is to shoot.

"You're not going to waste $100,000 a day to shoot something you're not going to use. It's not going to happen."