1. I like how it's suggested that no one actually quite knows just what Steve is capable of.
When Steve dives at least 12 stories through a glass ceiling and then just gets up and runs away - I love how the guy watching the security camera is like "You are kidding me, right?!?!" I like that, because I feel like even STEVE doesn't really know what he's capable of. Everything about Steve is tested when/if it comes up, and never before. And they've never been able to replicate the serum since, not quite the same way, so three's no one else having experiences and telling Steve about what to expect either.
It's a really cool character point that as much as Steve's morality is viewed as rock solid, he's still also a complete wild card, even to himself, when it comes to what he is capable of physically.
2. Humans can't process visual information fast enough to fly like birds.
So, Falcon was super cool, but during the last action sequence, all I could think of was: He'd have to have super human vision to fly that fast along the ground and maneuver that quickly. Birds can processes visual information at a much faster rate than humans, and that's what allows them to see things distinctly while flying. If you showed a bird a movie, it would look like a slide show.
Then I realized that I was complaining about the realism of the human visual cortex while I was watching super soldiers battle on helicarriers over a giant army base underneath a river, and I got over it. :P
3. On my way home from the movie, I had an experience that totally made me empathize with what Bucky much have been feeling... only, with a twist.
So, I was on the skytrain heading home, when I looked over and saw someone, and MAN, I think I knew them... they were SO FAMILIAR, like they were someone I met once and have just completely forgotten. It was SUPER EERIE and disconcerting. What was even MORE disconcerting was that my feelings were: "Do I know that person? Why do I think I know them? Why do I feel as though I HATE them?"
Seriously, I have no idea who they were or if I had ever met them before, but if I had, it wasn't a good encounter. They looked at me too, but I couldn't tell if they knew me, and then they turned around and looked out the window... probably because I was staring at them like a creeper. But seriously, I think I hate them for some reason.
Okay, now I'm done. I promise.