Absolutely fantastic, and here’s a spoiler free warning: there’s two stingers at the end of the movie, so stay until the bitter end of the credits. There’s a lot to say about this movie, but I think I’ll leave it at this: I’m happy Marvel has these different story franchise silos that cross over with each other at random times, but other than a couple dropped names and references you have no need to watch any of the Guardians of the Galaxy movies to see and enjoy the Ant-Man movies.