Captain America: The Winter Soldier is the most action packed movie I have ever seen, and that's saying a lot because I have made similar claims about other movies such as John Woo films, Transformers, the recent Star Trek movies, and the last 30 minutes of either The Avengers or Man of Steel. There comes a point where I wish the movie would just slow down a bit. I can only take so many fist fights, gun fights, car chases and explosions. When this movie does slow down, it is to give the audience a brief rest between the action scenes.
While I am at it, I should point out that it is really not possible to (repeatedly) fall from a great height and survive, let alone be unscathed, even when over water.
Despite my complaints, the movie engaged me in the edge of my seat sort of way. Some of the later scenes are very exciting, and the plot has the intellectual kahoonas to be about the trade off between freedom and security. It is nice to have some smarts in a film that would have otherwise been just a dumb action flick. The movie pays close attention to its characters and tries to throw in some tiny pieces of character development when it is not busy blowing up things.