YouTube - The Wind in the Willows Teaser Trailer Yes, because ALL little kids loved Lord of the Rings and King Kong.
That does seem like a fairly pointless trailer. A poster would have done what that did. I know it's only a teaser, but is it really needed?
... so Weta are doing animated films now? ~There's not enough here to form a judgement one way or another. They only thing I'll say is that the approach seems at odds with the subject matter. Wind in the Willows isn't some mysterious dark adventure, it's about the follies of a foolish aristocrat. Their parents probably did... and guess who buys the tickets?