There's something interesting about a midnight screening. Perhaps it's the exclusivity - being the first one to see a movie, being able to call it before anyone else, and when they ask the next day you, bleary-eyed and proud, can stand up and say "Yes! I have seen that movie!". Perhaps it's the silence as you step out of the cinema and realise it's nearly three in the morning - the one time of day you can see a movie and the sky looks pretty much the same when you leave as when you went in. Perhaps it's just the fact that it's midnight - it's always been a pretty special time.
Whatever the reason, I expected something special out of Captain America: The Winter Soldier. And I can't say I was disappointed.