Subscribe to our channel: http://bit.ly/EmpireSub<br />Mark Ruffalo and Chris Hemsworth speak to Empire about Avengers Assemble and their 'theme songs' -- you'll see what we mean...<br /><br /><br />Official YouTube home of the world's biggest (and best) movie magazine and website.<br /><br />Want to keep up to date with everything going on in the world of film?<br /><br />Visit our website here: http://www.empireonline.com<br />Follow us on Twitter here: http://twitter.com/empiremagazine<br />Fan us on Facebook here: http://www.facebook.com/empiremagazine<br />And subscribe on YouTube here: http://is.gd/yRxXu0 <br />Subscribe to the mag / iPad edition here: http://www.greatmagazines.co.uk/empire
