Chris Hemsworth trying to look intelligent.

At its best when you could admire the work of the creatures team - otherwise it was a way overlong boring actioner.

The casting is spot on. Jarvis is in every scene and does remarkably well for a young 'un. She has a great head butt.The dialogue is concise and in your face.The scene with the kid in the river looked authentic. The dance number with mum and the two sisters reminded me of "Bande a Part"(1964).

Big budget film makers eat your hearts out.

It is hard to dislike, silly but it does have energy and to give it its due it doesn't take itself seriously.