Pandadroom is a 4d movie in Alternative Realm at Efteling. It's worth seeing on a time-permitting basis.
A WWF sponsored 4D movie that encourages us all to be nicer to the environment through a series of computer animated clips that show animals having fun in their natural habitat, only to be disrupted by global warming, deforestation, etc. It's a good film, and has a great final trick, but contains very little that we haven't already seen. Make sure you don't miss out on the post-show area though, which contains some fun exhibits and interactive displays.