There is an element of irony in the way Captain America feels today. Strong, patriotic, never questioning his beliefs, etc. He is a living caricature of the American Dream, and director Joe Johnston plays it like such for the majority of the movie, but never at the expense of the character or the actor. And this is what makes the movie so good (for me, it is): many characters meet irony in the face when Rogers becomes Captain America. The symbol may lack perspectives, but Rogers is all heart when it comes to battling the Red Skull's army. The time reconstitution is quite astounding, and so are the special effects, all blended for the purpose of bringing the comic book character to cinematic life for the first time (let's not talk about that 1990 Captain America movie, please).
For a fan who expects many special features, Marvel and Paramount have grown quite cheap indeed, for they include just under 60 or 70 minutes of special features, never really going deep into the process of production, following the EPK formula of interviews and what a great time it was, etc. They feel rushed and not even scratching the surface.
Nevertheless, that shouldn't hold you from watching Captain America The First Avenger, for it contains its fair share of fun, action, special effects and all the goodies one may have come to love and enjoy from a Marvel movie.