The biggest threat to The Avengers may not be Loki ... but each other!
In a new clip from the upcoming superhero movie, Thor (Chris Hemsworth) and Iron Man (Robert Downey Jr.) are seen battling it out while crashing through trees, flying through the air and hurling lightning bolts at each other.
While the clip stops before we see the victor, who do you think would win?
The battle is only one of many between the Avengers in the new flick, due out May 4.
Which superhero are you looking forward to seeing on the big screen again most: Thor, Iron Man, Captain America, Hulk, Black Widow or Hawkeye?
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