What I love most about this film is that if you strip it of the superhero aspect it's just a really compelling and interesting spy flick. This movie sets the tone for the rest of the MCU, it's dark and that's the point. The fight scenes are incredible and fast pace, there's an element of mystery and just the right about of anxiety. On top of it you have a main villain who's not really the villain fighting for a larger villain. This may be my favorite movie ever.