The fight between the red viper and Gregor for Tyrion actually reminds me of fight between the six fingered man and Enigo - "Hello. My name is Enigo Montoya. You killed my father. Prepare to die." "Her name is Illia. You raped her. You killed her. You killed her children." And there was another part that reminds me of the Princess Bride as well: somewhere in the stories, either Dance with Dragons or Feast for Crows, a person offers another person gold, but the guy wants his dead family back, just like Enigo. I'll go back and reread to find the reference.
