This Classic Disney movie was created in 1937, and this was awhile back ago. At that time they didnt have all the fancy computers and technology that we have today, and animation back then was a pain in the butt. Snow White is a special movie because it is the first animated feature film in America, not only that but it was also the first cel-animated movie featured in FULL colour. This movie was also the first to be produced by Walt Disney himself, so this movie is more special than it seems.
At this time, Walt Disney wasnt the large amazing thing that little children screamed for, at that time it was small, and the animators were amateur newspaper comic artists. Ater lots of training they got to work of the animation of Snow White. Like i said before, technology wasn't the same as back then, the movie was created not by a computer program, however through a process called Rotoscoping. Rotoscoping is a animation technique where the artist traces over live-action film movement... frame by frame. Yeah thats right, every single movement was drawn frame by frame. Nowadays, computers pretty much do everything, with programs like Flash, even 6 year olds can do a simple animation. But yeah, since everything was done frame by frame, ALOT of animators were needed to create different scenes, draw backgrounds, colour, music, etc. etc... So obviously this movie took longer than animated movies nowadays would take. Here is a classic example of rotoscoping, by a very familiar classic cartoon character.
This film was released in 1933, 4 years before Snow White was released. And considering that Snow White is in full colour there was a large uproar of excitment to see cartoons in colour. After Snow White, many other Disney movies were in colour, slowly rasing the popularity and vale of Disney.
Snow White is currently known as one of the most classic Disney movies ever, and has one of the Disne princesses too.