Marvel have cast loose these three desktop wallpapers for their two upcoming summer blockbusters, one for ‘Thor’ and a deuce for ‘Captain America: The First Avenger.’ Each Wallpaper utilizes a recently released still from the superhero movies. ‘Thor’ is set for release April 29th 2011 in the UK, and May 6th 2011 in the US. ‘Captain America: The First Avenger’ comes to cinemas July 22nd, 2011 in the US, and July 29th 2011 in the UK. Check out the full size wallpapers at Marvel.

In addition to “Thor” and “Captain America: The First Avenger,” Marvel Studios will release a slate of films based on the Marvel characters including “Marvel Studios’ The Avengers” on May 4, 2012 and “Iron Man 3″ on May 3, 2013.