We saw Serenity over the weekend. Being huge fans of the show, we’re probably biased, but we loved it.
There were some really surprising parts. I don’t want to say anymore due to dropping spoilers. However, Sarah is still pissed at Joss over one part of the movie. She love it, but she’s still pissed.
If you haven’t seen it, go see it now! Linky says in his post on the movie that he enjoyed it without seeing the series first. So go see it! (However, watching the series first helps and makes a few things resonate more, IMHO.)