Captain Hammer vs Iron Man: Nathan Fillion and Downey Jr do battle

It’s like something directly out of a teenage girl’s fan fiction short story: Robert Downey Jr and Nathan Fillion square up in the this promo video for the new series of Castle and Avengers movie (written by Joss Whedon).

Fillion wins it with a final finishing blow, but if it had been directed by a fan-fic fangirl, it would have ended with him emerging in his Captain Hammer outfit from the super Dr Horrible’s Sing-Along Blog (written by Joss Whedon). Or maybe his Holy Avenger outfit from the horrible SUPER.

Katie Lee

Dork Adore's Editor! Katie started out life as a tech journalist and blog obsessive, launching the UK's first and biggest blog publishing network, Shiny Media. Favourite dork things: knitting, crochet, Press Gang, Buffy, Battlestar, Doctor Who and lifehacks.