If you live in or near select large cities, you may be able to preview the upcoming movie War Horse! It's being shown in select cities next week on Dec. 8. Click here to see if there's a showing near you. It's rated PG-13 because of violence (it is WWI!), so use your own judgment concerning your children's sensitivity to horses dying and war, etc.
If you can't make it to a screening, it does premier on CHRISTmas Day in theaters everywhere!
Also, watch the Homeschool Movie Club website for free, downloadable curriculum that is currently being written by the author of Apologia's Marine Biology!