There are many forms of video, if you take moment to look back you'll note silent, black and white as well as stop motion video.
There are some stop motion feature length films and the the amount of time and effort needed to create these is remarkable. If you have seen Coraline , it is an example of stop motion 3D. There are other films that are listed under this category that take much effort from the creators.
Stop motion video can also be done not using 3D. Take this for example.
This stop-motion video was created by our very own Maciek Kozlowski.
Reverse Robot from Videotelephony...