edit: obviously it's ok with me if you disagree, I just don't think it can be stated as "fact" that this is a bad movie
Well, obviously I disagree with some of you, but it was worth full price to me, my wife, several people at work and 3 of the 4 kids I took (one just couldn't, like some of you LotR fans, get over the ommissions).
The effects did not make up for a bad story. The movie was too short to be a very good movie, but I still found it entertaining. Some of the responses here are so over the top that they don't deserve comment/counter argument, but here are some responses:
The director/studio made too short a movie. This to me lead to the biggest weaknesses, the lack of "downtime" and character growth to get some people to buy into the characters. On the other hand, someone complained that he fell off his dragon the first time he rode it, do you want growth or not?
The dragon grew too fast, well, I just took that as some kind of magical ability that they had - I just accepted it at face value that that is how dragons worked in this world. If they had let it grow up from an egg to big enough to ride, I doubt anyone would have cared more or less about the dragon or the boy. Would you really care more? Or, can you just not accept that is how dragons work on this world? Really, why pre-suppose anything about how dragons work - isn't the fact that they aren't long lived and that they magically grow different and not cliched - see, you don't like it when it doesn't play to your cliche.
The acting and dialogue were wooden - have you watched the first star wars movie lately? I saw it in the theater in 1977 when it came out and loved it. I still love it, but Mark Hammil is brutal, and Carrie Fischer isn't much better. The dialogue, bad and contrived. Yup, the dialogue and acting could have been better, I agree, but it wasn't so bad that it ruined this movie. Remember, some of you like Will Ferrel movies - hardly great acting (and yes, comedies can be well acted).
Finally, the predictability - that was a weakness no doubt. But, come on, most movies with patently evil guys and obviously good guys end with the good guys winning and the bad buys losing. Really, did SW 4 or 6 end any differently than you expected? Did LotR end any differently? Yes, there were lots of obvious things happening, but that didn't mean that you couldn't just sit back and let the images and plot wash over you as inevitably and enjoyably as a wave from the ocean (sorry, just had to write something better there).
I enjoyed it, most everyone I know, fantasy fans or not, enjoyed it also. I did not love it, nor would I put it on my all time favorite list. But, if someone asked me if they should see it, and if they were not a fantasy hater (my mom, e.g.), I'd suggest going, with the warning that you are unlikely to be surprised very often.
So, now you know whose advice not to take for movies....