Overall this film was just meh. The cgi was good, but the writing pretty much ruined this film for me, it was just so boring and so predictable. The dialogue felt very scripted and just did not convince, As others have pointed out as well, [SPOILER] our damsel runs around screaming for the first part of the film and then suddenly turns into a warrior.
Watch this if you don't care about the dialogue or story and want a dragon, good cgi and pretty landscapes I guess.