At first, I really didn't put much hope into this movie because I don't really like movies like Scary Movie and Disaster Movie.
The Sullen (Cullen) Family
Becca (Bella) and Jacob White (Jacob Black)
Surprisingly, this movie came out to be better than them. Although the movie is also adopting sarcasm concept, but at least they didn't mix up too many scenes from other movies. The whole movie is mostly taken from Twilight and New Moon. Conclusion: It isn't that suck :)
Check out some funny quotes from the movie here.