VIDEO : Writers Say 'Infinity War' Is Similar To 'Game of Thrones'

Avengers: Infinity War is one of the biggest movies of all time.
It's shattered records for advanced ticket sales.
The film is written by Christopher Markus and Stephen McFeely.
The two compared Infinity War to HBO's Game of Thrones.
You have this vast canvas with characters you?ve been watching ... Only now does it have that feeling of massive plates shifting and finally bringing these characters near each other.
Infinity War combines hundreds of characters and dozens of storylines.
There are 18 films leading up to this movie, spread out over ten years.