Darkhououmon told me the answer and I shall try to reword the question.
I hope this makes more sense:
George Lucas and Stephen Spielberg did not originally plan the film "The Land Before Time" as we see it today. Instead, it was to be in a style not commonly seen in films of the time (or today for that matter). What is the main difference between the original idea for the style of the film and the style it turned out to be in the end?
I'll sit out this question. No points for me.