Anyone else think Star Wars--Episode 3 sucked?

I thought some of the action scenes were pretty cool. The movie certainly had its moments, but it just seemed to peter out in the end. I got bored and annoyed. Plus the acting was bad. I have seen Natalie Portman (Queen Amidala) and Hayden C. (Anakin/Darth) act in other movies (Closer, V for Vendetta, Shattered Gl)and they did really well, but not in Episode 3. Opinions, anyone?