An American fantasty action film; A story about a superhuman soldier who becomes an operative for a secret intelligence agency called SHIELD, but grows suspicious of their motives. He and a fellow Avenger callled Black Widow become fugitives, and try to bring down a sinister conspiracy. The unquenchable thirst for advancements in technology to solve potential conflicts is the main theme. It's a comic-book conspiracy thriller about frightening new military apparatus drawing uneasy parallels for the audience in a post-9/11 world. Captain America is a welcome contrast to other Marvel characters - more depth and principled, and more humanlike - a 1940s hero amidst all the bright lights, bells and whistles of industrialised magic.