I have an aversion to most comic book adaptation movies.
But I watched the first Guardians of the Galaxy movie on cable about a year ago and loved it. It was a heck of a lot of fun. Satisfying not only for the humor, but also for all the great SF visuals, and for the 1970's nostalgic music.
I liked it enough to DVD record it and watch it again. Hope the second is as enjoyable.