The book, like all Klutz I have bought is great, full of ideas and instantly grabs children's attention. However it recommends you download SAM animation which (unless I have missed something) whilst encouraging you to believe you get a special deal for purchasers of the book, gives you a demo version of the software which limits your creations to 5 seconds (50 frames) or nags you to spend $30 on the full version. My children had given up on the project by the time I had battled through the SAM suppliers website. The great sample videos on the Klutz website certainly last longer than 5 seconds, and make no mention of the restrictions.
I gave up on the free demo and purchased a full version of SAM for $30. No restrictions, intuitive and easy to use, no nagging, nice results and a fun day spent with the children filming carniverous fruit and dancing reindeer. Totally recommended (if you buy the full software)