I won't publish the synopsis of the movie here, as there's Wikipedia for that purpose, but let me tell you that I was amazed and awed by this movie. I liked it. First off, I never had much experience with fantasy, and the few books on fantasy that I have read all involved magical creatures and traveling. I read The Hobbit and the first book of the Lord of the Rings (I am slowly working my way through that trilogy) and they both involve travel as the main plot: in The Hobbit, it's travel to seek an adventure, and in The Fellowship of the Ring, it's travel to destroy the ring.
However, this one is different. Maybe it is because it is written quite recently? Maybe it's because it's a work by Neil Gaiman? Who knows, but I liked the fact that there was a romance story in it (Oh wait, that movie with Nicole Kidman and the daemons was a fantasy but it didn't involve travel). So that was something new.
Another thing that I liked was the fact that the assumptions in the movie all held, and everything was scientific and consistent. If you're willing to believe the assumptions that the movie presented, then everything cleared up. So, the movie presents the assumption that witches lose their beauty when they use their magic. It's a rather interesting and different assumption, as witches from other tales usually have magic in their eternal disposal. Here, the witches lose their beauty if they use it, and it was consistent all throughout the movie.
I also liked the fact that the blood of the royal prince was blue, and they portrayed it.
I also liked the fact that the characters weren't always happy, so when Yvaine and Tristan were sent to the clouds, they were arguing with each other. And the cross-dressing captain was fun too. It kinda added a modern twist to the fantasy.
Then there are parts that you would think twice, such as when Yvaine finally killed the witch at the very end by shining, you would think well, why didn't she do that in the first place, but then an assumption holds that you can only do that if the star's heart is not broken. And only at that time did she realize that Tristan loved her back.
Oh, it's a funny scene, yet a touching one as well, when Claire Danes confesses her love to Tristan, who at that point, was magically transformed to a mouse. I think it was the best monologue ever. Let me quote it below.
You know when I said I knew little about love? That wasn't true. I know a lot about love. I've seen it, centuries and centuries of it, and it was the only thing that made watching your world bearable. All those wars. Pain, lies, hate... It made me want to turn away and never look down again. But when I see the way that mankind loves... You could search to the furthest reaches of the universe and never find anything more beautiful. So yes, I know that love is unconditional. But I also know that it can be unpredictable, unexpected, uncontrollable, unbearable and strangely easy to mistake for loathing, and... What I'm trying to say, Tristan is... I think I love you. Is this love, Tristan? I never imagined I'd know it for myself. My heart... It feels like my chest can barely contain it. Like it's trying to escape because it doesn't belong to me any more. It belongs to you. And if you wanted it, I'd wish for nothing in exchange: no gifts. No goods. No demonstrations of devotion. Nothing but knowing you loved me too. Just your heart, in exchange for mine.
Remember, that was a monologue to a mouse.