When you watch an animation you usually don't expect such a thing as "Princes et Princesses". Basically this movie is a collection of tiny animations (six in total) whose plots align to those of ancient tales. So we're presented with several "topoi" (mainly involving princes and princesses), as well as cultural settings (ancient Egypt and Japan to name two). In the end, it is just like a transposition/adaption of good stories written in the past, all packed in one robust animation.
The overall idea being good, drawings look simple but original, and you may even say that a new style of making animations began with the assembling of this movie.
This is also going to be a great view for your kids, in case you have any.