18. Avengers: Age of Ultron
Both better and worse than I imagined and hoped. It's a strange feeling being both under and overwhelmed at once.
We got everything we asked for pretty much (other than real resolution for Hulk), but you just can't quite capture the magic of seeing these characters together for the first time.
Having said that, watch this with a kid and tell me that the Vision doesn't make their heads explode!