People who have seen harry potter and the half blood prince?

I actually liked the movie, I think it was really well-made and I could understand why they cut out what they did. The Burrow thing just pissed me off, though. It made no sense. The only other thing that made me mad was the fact that Dumbledore didn't explain what the other horcruxes were, the next movie will be very confusing to those who haven't read the books.