The 66-year-old author took to his blog to write about the latest addition "Ant-Man" which he feels has "a proper balance of story, character, humour, and action", reported Variety.
But "A Song of Ice and Fire" author had one problem with "Ant-Man" as well which was - the villain.
"I am tired of this Marvel movie trope where the bad guy has the same powers as the hero. The Hulk fought the Abomination, who is just a bad Hulk. Spider-Man fights Venom, who is just a bad Spider-Man.