For those who have reviewed this movie and not seen the first, realize that you are not a "fan" and thus should not have seen the sequel.
I heard rumors this movie was in production years ago but didn't believe it. When it came out I was very excited but a bit anxious. I love the first one so much, I didn't want them to have an opportunity to ruin it for me.
This picked up exactly where I left off, same sequel chemistry of return original characters and the same action with a different plot. The humor was fantastic and kept the entire audience going while the action kept you glued to their simple story line.