Use of rotoscoping in traditional animation

Rotoscoping is a process where a live action video is traced over frame by frame. This process can be used not just to copy live action videos put to implement the authentic natural movement into characters. Lots of animated films have used rotoscoping as a way of tackling difficult movements, Anastasia(1997) used rotoscoping quite extensively and many other animations used rotoscoping for a few scenes or so. The downside of using rotoscoping in hand drawn animation is that it can be used as a crutch instead of a tool and people who think they are producing animations are merely copying the live action. This gives the animation ironically a stale feel because the point of animation is self expression and with just copying a live action movement, that self expression is limited.