New 'Captain America' trailer: More Steve Rogers and more stuff blowing up

We're four weeks away from the release of "Captain America: The First Avenger," and the newest trailer for the movie gives us a good amount of new footage to pore over while we wait.

A few moments from the first trailer are duplicated here, but Marvel and Paramount also give us several new scenes, most of which seem aimed at moviegoers who may be less familiar with the character's comic-book history. The first minute or so focuses entirely on Steve Rogers (Chris Evans) before he undergoes his super-soldier transformation, highlighting the reasons why, despite his meager physical stature, he's chosen for the program.

Then the action kicks in, and in between the myriad explosions you get to see a little bit of Cap using his famous shield and a glimpse of Peggy Carter (Hayley Atwell) wielding a machine gun.

"Captain America" opens on July 22. What do you think of the new trailer?