Captain America & Thor Fighting Together on Set of The Avengers, Many Large Images

Chris Hemsworth, front, as Thor and Chris Evans as Captain America were united for the first time on the set of the Marvel Comics film The Avengers in Ohio

Attack of the clones: They were fighting alien soldiers, with stunt actors seen here in a grey suits which will be transformed for the movie with computer wizardry

All going up in smoke: The set was turned into an apocalyptic scene, with thick billowing smoke being released onto the set