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"Robert Downey Jr has compared The Avengers to a &amp;quot;complicated pregnancy&amp;quot;. The Iron Man star revealed that the various actors traded off scenes to create the ensemble superhero film. &amp;quot;It was like a complicated pregnancy,&amp;quot; Downey told Fox News. &amp;quot;What was fun, this bit of WWE superhero tag-team wrestling, is where [Chris] Hemsworth&amp;#039;s all beat up and he&amp;#039;s been shooting nights, and my character&amp;#039;s got the helmet closed, so I&amp;#039;m not there,&amp;quot; he continued.  &amp;quot;Then he&amp;#039;s flying home to be with the missus, and I&amp;#039;m coming in to do a bunch of scenes with [Mark] Ruffalo. I think everybody really bought into the spirit of the thing.&amp;quot; Guy Pearce recently joined the cast of Iron Man 3, taking the role of geneticist Aldrich Killian. The Avengers - out now in the UK - opens in the US on May 4.  Watch a trailer for The Avengers below:  "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.digitalspy.com/movies/the-avengers/news/a378681/robert-downey-jr-avengers-like-a-complicated-pregnancy/>