You know, the technology was at the right place for us to...

You know, the technology was at the right place for us to build this world. The most difficult thing about doing The Croods was no doubt the building of the world. Every single thing in this film is organic. Organic things are tough. Very very labour intensive. And we have no man-made structures. You could argue that everything in this film is really an exterior. Even the interiors of the cave are exteriors. So building this world was the biggest thing of all, and the technology was there to do it.