A simple and loud copy of #1 and they even admit it.

Rating: 5/10 (5 January 2015)

You don't need to be a fan of the original series, but it does help to enjoy the movie. Part 1 succeeded in being different enough and still respecting the source material. Not saying it was a good movie, but still enjoyable.
Now part 2 is not much different, yet it is. At the end of part 1 and the beginning of part 2 they even admit that this is going to be the same movie. But instead of adding something that might make this movie somehow original, they decided to make a movie built out of jokes that seem incoherent. Jokes work for 10 minutes, but they get old in this movie very soon. What doesn't help either is that they repeat the "relation-joke" over and over, without adding real characters or development.
Personally it felt as if they didn't really write this movie, but just crammed the leftovers of part 1. Leftover; that is exactly what this movie is. The only relief are the bad guys and some comedic guest parts, because the others seem to have given up halfway this movie.