Saw Paul last night, and thought it was hilarious. Simon Pegg and Nick Frost were hilarious as two British Sci-Fi nerds who come to the USA for a Comicon and then decide they are going on a UFO site roadtrip. Along the way they come across Paul, the Alien and embark on a trip for him to meet a space ship to get back home. A TON of call backs from older Sci-Fi movies, and one liners.
And, I know a lot of people don't like her, but Kristin Wiig was great as a daughter of a bible thumper who's entire world is upended once she meets Paul and realizes her religion might not be legit.