As anyone who has read the novels which the popular HBO show Game of Thrones is based on, there are quite a few differences in the television program from the source material. For one, the series is actually called "A Song of Ice and Fire", not "Game of Thrones" (which is actually the name of the first book). But there are way more - here are the ten most important ones:
1. In the books, it's Ser Ilyn Payne who spars with Jaime Lannister to help train him with his left hand, not Bronn.
2. In the books, Theon's sister is named "Asha," not "Uhhh Theon's Sister? The One He Fingerbanged. I can't remember her name"
3. In the books, the only main characters to die at the Red Wedding were Robb and Catelyn, not Robb's wife. Also, in the books, Robb's wife is named Jeyne Westerling, not Talisa Maegyr. Also, the event is known as the "Bread Wedding" because there was a bunch of bread at the feast.
4. In the books, the dragons are actually three Dothraki bloodriders pretending to be dragons, to cheer up Daenerys after the death of Khal Drogo. By the fifth book, she is beginning to suspect something is wrong with her dragons, who cannot fly or breathe fire and are obviously wearing papier-mache masks.
5. In the books, Jon Snow's tenure with the wildlings goes much differently when it's revealed he has been a Cylon THE ENTIRE TIME.
6. In the books, the Jaeger commanded by Bran is called "Bitchin' Megazord", not "Hodor." Also, the Kaiju he battles is a Category 3, not a 4.
7. The scar on Tyrion's face is much worse in the books. Also, it is shaped like a swastika. Also, Tyrion is literally the bad guy from Inglorious Basterds who got the swastika carved into his forehead by Brad Pitt. The entire book series is about him traveling to a different dimension.
8. In the books, the standard attire in Qarth is a dress with a single breast exposed. Also, old fantasy authors with beards and glasses are considered to be the most attractive kind of people ever.
9. In the books, Daenerys has already reached Westeros by this point and taken the Iron Throne. Everyone's pretty happy with her as the Queen. No one's plotting or scheming or anything. It's pretty peaceful and quaint. Tyrion's settled down with Shae and the two operate a modestly-successful Hyundai dealership in the Riverlands. Arya and Sansa are reunited and have started a repertory theatre with the Hound. Littlefinger and Varys gave up the "secrets" game and are super into knitting.
10. In the books, there are a bunch of words - whereas in the show, it's more about moving images and sounds.